diff --git a/.eslintrc.json b/.eslintrc.json
index 8c92a9e..f4ddf10 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -1,12 +1,9 @@
 {
   "env": {
-      "browser": true,
-      "commonjs": true,
-      "es2021": true
+    "commonjs": true,
+    "es2021": true
   },
-  "extends": [
-      "airbnb-base"
-  ],
+  "extends": "semistandard",
   "parser": "@babel/eslint-parser",
   "parserOptions": {
       "ecmaVersion": 12,
@@ -15,12 +12,13 @@
       }
   },
   "rules": {
-    "no-underscore-dangle": "off",
-    "no-param-reassign": "off",
-    "no-plusplus": "off",
-    "max-len": ["warn", { "code": 120 }],
-    "import/extensions": ["off"],
-    "no-use-before-define": "off"
+    "comma-dangle": ["error", {
+      "arrays": "always-multiline",
+      "objects": "always-multiline",
+      "imports": "never",
+      "exports": "never",
+      "functions": "never"
+    }]
   },
   "plugins": ["@babel"]
 }
diff --git a/package-lock.json b/package-lock.json
index 10743f2..e7e7677 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16,9 +16,13 @@
         "@babel/plugin-syntax-class-properties": "^7.12.13",
         "@babel/preset-env": "^7.14.0",
         "chai": "^4.3.4",
-        "eslint": "^7.25.0",
-        "eslint-config-airbnb-base": "^14.2.1",
-        "eslint-plugin-import": "^2.22.1",
+        "eslint": "^7.27.0",
+        "eslint-config-semistandard": "^15.0.1",
+        "eslint-config-standard": "^16.0.3",
+        "eslint-plugin-import": "^2.23.3",
+        "eslint-plugin-node": "^11.1.0",
+        "eslint-plugin-promise": "^5.1.0",
+        "eslint-plugin-standard": "^5.0.0",
         "mocha": "^8.3.2"
       }
     },
@@ -1523,9 +1527,9 @@
       }
     },
     "node_modules/@eslint/eslintrc": {
-      "version": "0.4.0",
-      "resolved": "https://registry.npmjs.org/@eslint/eslintrc/-/eslintrc-0.4.0.tgz",
-      "integrity": "sha512-2ZPCc+uNbjV5ERJr+aKSPRwZgKd2z11x0EgLvb1PURmUrn9QNRXFqje0Ldq454PfAVyaJYyrDvvIKSFP4NnBog==",
+      "version": "0.4.1",
+      "resolved": "https://registry.npmjs.org/@eslint/eslintrc/-/eslintrc-0.4.1.tgz",
+      "integrity": "sha512-5v7TDE9plVhvxQeWLXDTvFvJBdH6pEsdnl2g/dAptmuFEPedQ4Erq5rsDsX+mvAM610IhNaO2W5V1dOOnDKxkQ==",
       "dev": true,
       "dependencies": {
         "ajv": "^6.12.4",
@@ -2048,26 +2052,11 @@
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
       "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s="
     },
-    "node_modules/confusing-browser-globals": {
-      "version": "1.0.10",
-      "resolved": "https://registry.npmjs.org/confusing-browser-globals/-/confusing-browser-globals-1.0.10.tgz",
-      "integrity": "sha512-gNld/3lySHwuhaVluJUKLePYirM3QNCKzVxqAdhJII9/WXKVX5PURzMVJspS1jTslSqjeuG4KMVTSouit5YPHA==",
-      "dev": true
-    },
     "node_modules/console-control-strings": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/console-control-strings/-/console-control-strings-1.1.0.tgz",
       "integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4="
     },
-    "node_modules/contains-path": {
-      "version": "0.1.0",
-      "resolved": "https://registry.npmjs.org/contains-path/-/contains-path-0.1.0.tgz",
-      "integrity": "sha1-/ozxhP9mcLa67wGp1IYaXL7EEgo=",
-      "dev": true,
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
     "node_modules/convert-source-map": {
       "version": "1.7.0",
       "resolved": "https://registry.npmjs.org/convert-source-map/-/convert-source-map-1.7.0.tgz",
@@ -2326,25 +2315,27 @@
       }
     },
     "node_modules/eslint": {
-      "version": "7.25.0",
-      "resolved": "https://registry.npmjs.org/eslint/-/eslint-7.25.0.tgz",
-      "integrity": "sha512-TVpSovpvCNpLURIScDRB6g5CYu/ZFq9GfX2hLNIV4dSBKxIWojeDODvYl3t0k0VtMxYeR8OXPCFE5+oHMlGfhw==",
+      "version": "7.27.0",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-7.27.0.tgz",
+      "integrity": "sha512-JZuR6La2ZF0UD384lcbnd0Cgg6QJjiCwhMD6eU4h/VGPcVGwawNNzKU41tgokGXnfjOOyI6QIffthhJTPzzuRA==",
       "dev": true,
       "dependencies": {
         "@babel/code-frame": "7.12.11",
-        "@eslint/eslintrc": "^0.4.0",
+        "@eslint/eslintrc": "^0.4.1",
         "ajv": "^6.10.0",
         "chalk": "^4.0.0",
         "cross-spawn": "^7.0.2",
         "debug": "^4.0.1",
         "doctrine": "^3.0.0",
         "enquirer": "^2.3.5",
+        "escape-string-regexp": "^4.0.0",
         "eslint-scope": "^5.1.1",
         "eslint-utils": "^2.1.0",
         "eslint-visitor-keys": "^2.0.0",
         "espree": "^7.3.1",
         "esquery": "^1.4.0",
         "esutils": "^2.0.2",
+        "fast-deep-equal": "^3.1.3",
         "file-entry-cache": "^6.0.1",
         "functional-red-black-tree": "^1.0.1",
         "glob-parent": "^5.0.0",
@@ -2356,7 +2347,7 @@
         "js-yaml": "^3.13.1",
         "json-stable-stringify-without-jsonify": "^1.0.1",
         "levn": "^0.4.1",
-        "lodash": "^4.17.21",
+        "lodash.merge": "^4.6.2",
         "minimatch": "^3.0.4",
         "natural-compare": "^1.4.0",
         "optionator": "^0.9.1",
@@ -2365,7 +2356,7 @@
         "semver": "^7.2.1",
         "strip-ansi": "^6.0.0",
         "strip-json-comments": "^3.1.0",
-        "table": "^6.0.4",
+        "table": "^6.0.9",
         "text-table": "^0.2.0",
         "v8-compile-cache": "^2.0.3"
       },
@@ -2379,22 +2370,45 @@
         "url": "https://opencollective.com/eslint"
       }
     },
-    "node_modules/eslint-config-airbnb-base": {
-      "version": "14.2.1",
-      "resolved": "https://registry.npmjs.org/eslint-config-airbnb-base/-/eslint-config-airbnb-base-14.2.1.tgz",
-      "integrity": "sha512-GOrQyDtVEc1Xy20U7vsB2yAoB4nBlfH5HZJeatRXHleO+OS5Ot+MWij4Dpltw4/DyIkqUfqz1epfhVR5XWWQPA==",
+    "node_modules/eslint-config-semistandard": {
+      "version": "15.0.1",
+      "resolved": "https://registry.npmjs.org/eslint-config-semistandard/-/eslint-config-semistandard-15.0.1.tgz",
+      "integrity": "sha512-sfV+qNBWKOmF0kZJll1VH5XqOAdTmLlhbOl9WKI11d2eMEe+Kicxnpm24PQWHOqAfk5pAWU2An0LjNCXKa4Usg==",
       "dev": true,
-      "dependencies": {
-        "confusing-browser-globals": "^1.0.10",
-        "object.assign": "^4.1.2",
-        "object.entries": "^1.1.2"
-      },
-      "engines": {
-        "node": ">= 6"
-      },
+      "license": "ISC",
       "peerDependencies": {
-        "eslint": "^5.16.0 || ^6.8.0 || ^7.2.0",
-        "eslint-plugin-import": "^2.22.1"
+        "eslint": ">=6.0.1",
+        "eslint-config-standard": ">=14.1.0",
+        "eslint-plugin-import": ">=2.18.0",
+        "eslint-plugin-node": ">=9.1.0",
+        "eslint-plugin-promise": ">=4.2.1",
+        "eslint-plugin-standard": ">=4.0.0"
+      }
+    },
+    "node_modules/eslint-config-standard": {
+      "version": "16.0.3",
+      "resolved": "https://registry.npmjs.org/eslint-config-standard/-/eslint-config-standard-16.0.3.tgz",
+      "integrity": "sha512-x4fmJL5hGqNJKGHSjnLdgA6U6h1YW/G2dW9fA+cyVur4SK6lyue8+UgNKWlZtUDTXvgKDD/Oa3GQjmB5kjtVvg==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
+      "peerDependencies": {
+        "eslint": "^7.12.1",
+        "eslint-plugin-import": "^2.22.1",
+        "eslint-plugin-node": "^11.1.0",
+        "eslint-plugin-promise": "^4.2.1 || ^5.0.0"
       }
     },
     "node_modules/eslint-import-resolver-node": {
@@ -2423,12 +2437,12 @@
       "dev": true
     },
     "node_modules/eslint-module-utils": {
-      "version": "2.6.0",
-      "resolved": "https://registry.npmjs.org/eslint-module-utils/-/eslint-module-utils-2.6.0.tgz",
-      "integrity": "sha512-6j9xxegbqe8/kZY8cYpcp0xhbK0EgJlg3g9mib3/miLaExuuwc3n5UEfSnU6hWMbT0FAYVvDbL9RrRgpUeQIvA==",
+      "version": "2.6.1",
+      "resolved": "https://registry.npmjs.org/eslint-module-utils/-/eslint-module-utils-2.6.1.tgz",
+      "integrity": "sha512-ZXI9B8cxAJIH4nfkhTwcRTEAnrVfobYqwjWy/QMCZ8rHkZHFjf9yO4BzpiF9kCSfNlMG54eKigISHpX0+AaT4A==",
       "dev": true,
       "dependencies": {
-        "debug": "^2.6.9",
+        "debug": "^3.2.7",
         "pkg-dir": "^2.0.0"
       },
       "engines": {
@@ -2436,38 +2450,53 @@
       }
     },
     "node_modules/eslint-module-utils/node_modules/debug": {
-      "version": "2.6.9",
-      "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
-      "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+      "version": "3.2.7",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.7.tgz",
+      "integrity": "sha512-CFjzYYAi4ThfiQvizrFQevTTXHtnCqWfe7x1AhgEscTz6ZbLbfoLRLPugTQyBth6f8ZERVUSyWHFD/7Wu4t1XQ==",
       "dev": true,
       "dependencies": {
-        "ms": "2.0.0"
+        "ms": "^2.1.1"
       }
     },
-    "node_modules/eslint-module-utils/node_modules/ms": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
-      "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=",
-      "dev": true
-    },
-    "node_modules/eslint-plugin-import": {
-      "version": "2.22.1",
-      "resolved": "https://registry.npmjs.org/eslint-plugin-import/-/eslint-plugin-import-2.22.1.tgz",
-      "integrity": "sha512-8K7JjINHOpH64ozkAhpT3sd+FswIZTfMZTjdx052pnWrgRCVfp8op9tbjpAk3DdUeI/Ba4C8OjdC0r90erHEOw==",
+    "node_modules/eslint-plugin-es": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-es/-/eslint-plugin-es-3.0.1.tgz",
+      "integrity": "sha512-GUmAsJaN4Fc7Gbtl8uOBlayo2DqhwWvEzykMHSCZHU3XdJ+NSzzZcVhXh3VxX5icqQ+oQdIEawXX8xkR3mIFmQ==",
       "dev": true,
       "dependencies": {
-        "array-includes": "^3.1.1",
-        "array.prototype.flat": "^1.2.3",
-        "contains-path": "^0.1.0",
+        "eslint-utils": "^2.0.0",
+        "regexpp": "^3.0.0"
+      },
+      "engines": {
+        "node": ">=8.10.0"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/mysticatea"
+      },
+      "peerDependencies": {
+        "eslint": ">=4.19.1"
+      }
+    },
+    "node_modules/eslint-plugin-import": {
+      "version": "2.23.3",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-import/-/eslint-plugin-import-2.23.3.tgz",
+      "integrity": "sha512-wDxdYbSB55F7T5CC7ucDjY641VvKmlRwT0Vxh7PkY1mI4rclVRFWYfsrjDgZvwYYDZ5ee0ZtfFKXowWjqvEoRQ==",
+      "dev": true,
+      "dependencies": {
+        "array-includes": "^3.1.3",
+        "array.prototype.flat": "^1.2.4",
         "debug": "^2.6.9",
-        "doctrine": "1.5.0",
+        "doctrine": "^2.1.0",
         "eslint-import-resolver-node": "^0.3.4",
-        "eslint-module-utils": "^2.6.0",
+        "eslint-module-utils": "^2.6.1",
+        "find-up": "^2.0.0",
         "has": "^1.0.3",
+        "is-core-module": "^2.4.0",
         "minimatch": "^3.0.4",
-        "object.values": "^1.1.1",
-        "read-pkg-up": "^2.0.0",
-        "resolve": "^1.17.0",
+        "object.values": "^1.1.3",
+        "pkg-up": "^2.0.0",
+        "read-pkg-up": "^3.0.0",
+        "resolve": "^1.20.0",
         "tsconfig-paths": "^3.9.0"
       },
       "engines": {
@@ -2487,24 +2516,155 @@
       }
     },
     "node_modules/eslint-plugin-import/node_modules/doctrine": {
-      "version": "1.5.0",
-      "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-1.5.0.tgz",
-      "integrity": "sha1-N53Ocw9hZvds76TmcHoVmwLFpvo=",
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-2.1.0.tgz",
+      "integrity": "sha512-35mSku4ZXK0vfCuHEDAwt55dg2jNajHZ1odvF+8SSr82EsZY4QmXfuWso8oEd8zRhVObSN18aM0CjSdoBX7zIw==",
       "dev": true,
       "dependencies": {
-        "esutils": "^2.0.2",
-        "isarray": "^1.0.0"
+        "esutils": "^2.0.2"
       },
       "engines": {
         "node": ">=0.10.0"
       }
     },
+    "node_modules/eslint-plugin-import/node_modules/find-up": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/find-up/-/find-up-2.1.0.tgz",
+      "integrity": "sha1-RdG35QbHF93UgndaK3eSCjwMV6c=",
+      "dev": true,
+      "dependencies": {
+        "locate-path": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/eslint-plugin-import/node_modules/locate-path": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-2.0.0.tgz",
+      "integrity": "sha1-K1aLJl7slExtnA3pw9u7ygNUzY4=",
+      "dev": true,
+      "dependencies": {
+        "p-locate": "^2.0.0",
+        "path-exists": "^3.0.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/eslint-plugin-import/node_modules/ms": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
       "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=",
       "dev": true
     },
+    "node_modules/eslint-plugin-import/node_modules/p-limit": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-1.3.0.tgz",
+      "integrity": "sha512-vvcXsLAJ9Dr5rQOPk7toZQZJApBl2K4J6dANSsEuh6QI41JYcsS/qhTGa9ErIUUgK3WNQoJYvylxvjqmiqEA9Q==",
+      "dev": true,
+      "dependencies": {
+        "p-try": "^1.0.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/eslint-plugin-import/node_modules/p-locate": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-2.0.0.tgz",
+      "integrity": "sha1-IKAQOyIqcMj9OcwuWAaA893l7EM=",
+      "dev": true,
+      "dependencies": {
+        "p-limit": "^1.1.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/eslint-plugin-import/node_modules/path-exists": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-3.0.0.tgz",
+      "integrity": "sha1-zg6+ql94yxiSXqfYENe1mwEP1RU=",
+      "dev": true,
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/eslint-plugin-node": {
+      "version": "11.1.0",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-node/-/eslint-plugin-node-11.1.0.tgz",
+      "integrity": "sha512-oUwtPJ1W0SKD0Tr+wqu92c5xuCeQqB3hSCHasn/ZgjFdA9iDGNkNf2Zi9ztY7X+hNuMib23LNGRm6+uN+KLE3g==",
+      "dev": true,
+      "dependencies": {
+        "eslint-plugin-es": "^3.0.0",
+        "eslint-utils": "^2.0.0",
+        "ignore": "^5.1.1",
+        "minimatch": "^3.0.4",
+        "resolve": "^1.10.1",
+        "semver": "^6.1.0"
+      },
+      "engines": {
+        "node": ">=8.10.0"
+      },
+      "peerDependencies": {
+        "eslint": ">=5.16.0"
+      }
+    },
+    "node_modules/eslint-plugin-node/node_modules/ignore": {
+      "version": "5.1.8",
+      "resolved": "https://registry.npmjs.org/ignore/-/ignore-5.1.8.tgz",
+      "integrity": "sha512-BMpfD7PpiETpBl/A6S498BaIJ6Y/ABT93ETbby2fP00v4EbvPBXWEoaR1UBPKs3iR53pJY7EtZk5KACI57i1Uw==",
+      "dev": true,
+      "engines": {
+        "node": ">= 4"
+      }
+    },
+    "node_modules/eslint-plugin-node/node_modules/semver": {
+      "version": "6.3.0",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
+      "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==",
+      "dev": true,
+      "bin": {
+        "semver": "bin/semver.js"
+      }
+    },
+    "node_modules/eslint-plugin-promise": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-promise/-/eslint-plugin-promise-5.1.0.tgz",
+      "integrity": "sha512-NGmI6BH5L12pl7ScQHbg7tvtk4wPxxj8yPHH47NvSmMtFneC077PSeY3huFj06ZWZvtbfxSPt3RuOQD5XcR4ng==",
+      "dev": true,
+      "engines": {
+        "node": "^10.12.0 || >=12.0.0"
+      },
+      "peerDependencies": {
+        "eslint": "^7.0.0"
+      }
+    },
+    "node_modules/eslint-plugin-standard": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-standard/-/eslint-plugin-standard-5.0.0.tgz",
+      "integrity": "sha512-eSIXPc9wBM4BrniMzJRBm2uoVuXz2EPa+NXPk2+itrVt+r5SbKFERx/IgrK/HmfjddyKVz2f+j+7gBRvu19xLg==",
+      "deprecated": "standard 16.0.0 and eslint-config-standard 16.0.0 no longer require the eslint-plugin-standard package. You can remove it from your dependencies with 'npm rm eslint-plugin-standard'. More info here: https://github.com/standard/standard/issues/1316",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
+      "peerDependencies": {
+        "eslint": ">=5.0.0"
+      }
+    },
     "node_modules/eslint-rule-composer": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/eslint-rule-composer/-/eslint-rule-composer-0.3.0.tgz",
@@ -3107,9 +3267,9 @@
       }
     },
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+    "eslint-plugin-import": {
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+      "resolved": "https://registry.npmjs.org/eslint-plugin-import/-/eslint-plugin-import-2.23.3.tgz",
+      "integrity": "sha512-wDxdYbSB55F7T5CC7ucDjY641VvKmlRwT0Vxh7PkY1mI4rclVRFWYfsrjDgZvwYYDZ5ee0ZtfFKXowWjqvEoRQ==",
+      "dev": true,
+      "requires": {
+        "array-includes": "^3.1.3",
+        "array.prototype.flat": "^1.2.4",
         "debug": "^2.6.9",
-        "doctrine": "1.5.0",
+        "doctrine": "^2.1.0",
         "eslint-import-resolver-node": "^0.3.4",
-        "eslint-module-utils": "^2.6.0",
+        "eslint-module-utils": "^2.6.1",
+        "find-up": "^2.0.0",
         "has": "^1.0.3",
+        "is-core-module": "^2.4.0",
         "minimatch": "^3.0.4",
-        "object.values": "^1.1.1",
-        "read-pkg-up": "^2.0.0",
-        "resolve": "^1.17.0",
+        "object.values": "^1.1.3",
+        "pkg-up": "^2.0.0",
+        "read-pkg-up": "^3.0.0",
+        "resolve": "^1.20.0",
         "tsconfig-paths": "^3.9.0"
       },
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@@ -7072,13 +7293,31 @@
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         "doctrine": {
-          "version": "1.5.0",
-          "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-1.5.0.tgz",
-          "integrity": "sha1-N53Ocw9hZvds76TmcHoVmwLFpvo=",
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-2.1.0.tgz",
+          "integrity": "sha512-35mSku4ZXK0vfCuHEDAwt55dg2jNajHZ1odvF+8SSr82EsZY4QmXfuWso8oEd8zRhVObSN18aM0CjSdoBX7zIw==",
           "dev": true,
           "requires": {
-            "esutils": "^2.0.2",
-            "isarray": "^1.0.0"
+            "esutils": "^2.0.2"
+          }
+        },
+        "find-up": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/find-up/-/find-up-2.1.0.tgz",
+          "integrity": "sha1-RdG35QbHF93UgndaK3eSCjwMV6c=",
+          "dev": true,
+          "requires": {
+            "locate-path": "^2.0.0"
+          }
+        },
+        "locate-path": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-2.0.0.tgz",
+          "integrity": "sha1-K1aLJl7slExtnA3pw9u7ygNUzY4=",
+          "dev": true,
+          "requires": {
+            "p-locate": "^2.0.0",
+            "path-exists": "^3.0.0"
           }
         },
         "ms": {
@@ -7086,9 +7325,75 @@
           "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
           "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=",
           "dev": true
+        },
+        "p-limit": {
+          "version": "1.3.0",
+          "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-1.3.0.tgz",
+          "integrity": "sha512-vvcXsLAJ9Dr5rQOPk7toZQZJApBl2K4J6dANSsEuh6QI41JYcsS/qhTGa9ErIUUgK3WNQoJYvylxvjqmiqEA9Q==",
+          "dev": true,
+          "requires": {
+            "p-try": "^1.0.0"
+          }
+        },
+        "p-locate": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-2.0.0.tgz",
+          "integrity": "sha1-IKAQOyIqcMj9OcwuWAaA893l7EM=",
+          "dev": true,
+          "requires": {
+            "p-limit": "^1.1.0"
+          }
+        },
+        "path-exists": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-3.0.0.tgz",
+          "integrity": "sha1-zg6+ql94yxiSXqfYENe1mwEP1RU=",
+          "dev": true
         }
       }
     },
+    "eslint-plugin-node": {
+      "version": "11.1.0",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-node/-/eslint-plugin-node-11.1.0.tgz",
+      "integrity": "sha512-oUwtPJ1W0SKD0Tr+wqu92c5xuCeQqB3hSCHasn/ZgjFdA9iDGNkNf2Zi9ztY7X+hNuMib23LNGRm6+uN+KLE3g==",
+      "dev": true,
+      "requires": {
+        "eslint-plugin-es": "^3.0.0",
+        "eslint-utils": "^2.0.0",
+        "ignore": "^5.1.1",
+        "minimatch": "^3.0.4",
+        "resolve": "^1.10.1",
+        "semver": "^6.1.0"
+      },
+      "dependencies": {
+        "ignore": {
+          "version": "5.1.8",
+          "resolved": "https://registry.npmjs.org/ignore/-/ignore-5.1.8.tgz",
+          "integrity": "sha512-BMpfD7PpiETpBl/A6S498BaIJ6Y/ABT93ETbby2fP00v4EbvPBXWEoaR1UBPKs3iR53pJY7EtZk5KACI57i1Uw==",
+          "dev": true
+        },
+        "semver": {
+          "version": "6.3.0",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
+          "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==",
+          "dev": true
+        }
+      }
+    },
+    "eslint-plugin-promise": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-promise/-/eslint-plugin-promise-5.1.0.tgz",
+      "integrity": "sha512-NGmI6BH5L12pl7ScQHbg7tvtk4wPxxj8yPHH47NvSmMtFneC077PSeY3huFj06ZWZvtbfxSPt3RuOQD5XcR4ng==",
+      "dev": true,
+      "requires": {}
+    },
+    "eslint-plugin-standard": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-standard/-/eslint-plugin-standard-5.0.0.tgz",
+      "integrity": "sha512-eSIXPc9wBM4BrniMzJRBm2uoVuXz2EPa+NXPk2+itrVt+r5SbKFERx/IgrK/HmfjddyKVz2f+j+7gBRvu19xLg==",
+      "dev": true,
+      "requires": {}
+    },
     "eslint-rule-composer": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/eslint-rule-composer/-/eslint-rule-composer-0.3.0.tgz",
@@ -7540,9 +7845,9 @@
       "dev": true
     },
     "is-core-module": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/is-core-module/-/is-core-module-2.3.0.tgz",
-      "integrity": "sha512-xSphU2KG9867tsYdLD4RWQ1VqdFl4HTO9Thf3I/3dLEfr0dbPTWKsuCKrgqMljg4nPE+Gq0VCnzT3gr0CyBmsw==",
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/is-core-module/-/is-core-module-2.4.0.tgz",
+      "integrity": "sha512-6A2fkfq1rfeQZjxrZJGerpLCTHRNEBiSgnu0+obeJpEPZRUooHgsizvzv0ZjJwOz3iWIHdJtVWJ/tmPr3D21/A==",
       "dev": true,
       "requires": {
         "has": "^1.0.3"
@@ -7659,6 +7964,12 @@
       "integrity": "sha512-OYu7XEzjkCQ3C5Ps3QIZsQfNpqoJyZZA99wd9aWd05NCtC5pWOkShK2mkL6HXQR6/Cy2lbNdPlZBpuQHXE63gA==",
       "dev": true
     },
+    "json-parse-better-errors": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/json-parse-better-errors/-/json-parse-better-errors-1.0.2.tgz",
+      "integrity": "sha512-mrqyZKfX5EhL7hvqcV6WG1yYjnjeuYDzDhhcAAUrq8Po85NBQBJP+ZDUT75qZQ98IkUoBqdkExkukOU7Ts2wrw==",
+      "dev": true
+    },
     "json-schema-traverse": {
       "version": "0.4.1",
       "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-0.4.1.tgz",
@@ -7701,14 +8012,14 @@
       }
     },
     "load-json-file": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/load-json-file/-/load-json-file-2.0.0.tgz",
-      "integrity": "sha1-eUfkIUmvgNaWy/eXvKq8/h/inKg=",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/load-json-file/-/load-json-file-4.0.0.tgz",
+      "integrity": "sha1-L19Fq5HjMhYjT9U62rZo607AmTs=",
       "dev": true,
       "requires": {
         "graceful-fs": "^4.1.2",
-        "parse-json": "^2.2.0",
-        "pify": "^2.0.0",
+        "parse-json": "^4.0.0",
+        "pify": "^3.0.0",
         "strip-bom": "^3.0.0"
       }
     },
@@ -7721,12 +8032,6 @@
         "p-locate": "^5.0.0"
       }
     },
-    "lodash": {
-      "version": "4.17.21",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
-      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
-      "dev": true
-    },
     "lodash.clonedeep": {
       "version": "4.5.0",
       "resolved": "https://registry.npmjs.org/lodash.clonedeep/-/lodash.clonedeep-4.5.0.tgz",
@@ -7745,6 +8050,12 @@
       "integrity": "sha1-8xwiIlqWMtK7+OSt2+8kCqdlph8=",
       "dev": true
     },
+    "lodash.merge": {
+      "version": "4.6.2",
+      "resolved": "https://registry.npmjs.org/lodash.merge/-/lodash.merge-4.6.2.tgz",
+      "integrity": "sha512-0KpjqXRVvrYyCsX1swR/XTK0va6VQkQM6MNo7PqW77ByjAhoARA8EfrP1N4+KlKj8YS0ZUCtRT/YUuhyYDujIQ==",
+      "dev": true
+    },
     "lodash.truncate": {
       "version": "4.4.2",
       "resolved": "https://registry.npmjs.org/lodash.truncate/-/lodash.truncate-4.4.2.tgz",
@@ -8062,18 +8373,6 @@
         "object-keys": "^1.1.1"
       }
     },
-    "object.entries": {
-      "version": "1.1.3",
-      "resolved": "https://registry.npmjs.org/object.entries/-/object.entries-1.1.3.tgz",
-      "integrity": "sha512-ym7h7OZebNS96hn5IJeyUmaWhaSM4SVtAPPfNLQEI2MYWCO2egsITb9nab2+i/Pwibx+R0mtn+ltKJXRSeTMGg==",
-      "dev": true,
-      "requires": {
-        "call-bind": "^1.0.0",
-        "define-properties": "^1.1.3",
-        "es-abstract": "^1.18.0-next.1",
-        "has": "^1.0.3"
-      }
-    },
     "object.values": {
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/object.values/-/object.values-1.1.3.tgz",
@@ -8161,12 +8460,13 @@
       }
     },
     "parse-json": {
-      "version": "2.2.0",
-      "resolved": "https://registry.npmjs.org/parse-json/-/parse-json-2.2.0.tgz",
-      "integrity": "sha1-9ID0BDTvgHQfhGkJn43qGPVaTck=",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/parse-json/-/parse-json-4.0.0.tgz",
+      "integrity": "sha1-vjX1Qlvh9/bHRxhPmKeIy5lHfuA=",
       "dev": true,
       "requires": {
-        "error-ex": "^1.2.0"
+        "error-ex": "^1.3.1",
+        "json-parse-better-errors": "^1.0.1"
       }
     },
     "path-exists": {
@@ -8193,12 +8493,12 @@
       "dev": true
     },
     "path-type": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/path-type/-/path-type-2.0.0.tgz",
-      "integrity": "sha1-8BLMuEFbcJb8LaoQVMPXI4lZTHM=",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/path-type/-/path-type-3.0.0.tgz",
+      "integrity": "sha512-T2ZUsdZFHgA3u4e5PfPbjd7HDDpxPnQb5jN0SrDsjNSuVXHJqtwTnWqG0B1jZrgmJ/7lj1EmVIByWt1gxGkWvg==",
       "dev": true,
       "requires": {
-        "pify": "^2.0.0"
+        "pify": "^3.0.0"
       }
     },
     "pathval": {
@@ -8214,9 +8514,9 @@
       "dev": true
     },
     "pify": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
-      "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw=",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/pify/-/pify-3.0.0.tgz",
+      "integrity": "sha1-5aSs0sEB/fPZpNB/DbxNtJ3SgXY=",
       "dev": true
     },
     "pkg-dir": {
@@ -8273,6 +8573,60 @@
         }
       }
     },
+    "pkg-up": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/pkg-up/-/pkg-up-2.0.0.tgz",
+      "integrity": "sha1-yBmscoBZpGHKscOImivjxJoATX8=",
+      "dev": true,
+      "requires": {
+        "find-up": "^2.1.0"
+      },
+      "dependencies": {
+        "find-up": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/find-up/-/find-up-2.1.0.tgz",
+          "integrity": "sha1-RdG35QbHF93UgndaK3eSCjwMV6c=",
+          "dev": true,
+          "requires": {
+            "locate-path": "^2.0.0"
+          }
+        },
+        "locate-path": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-2.0.0.tgz",
+          "integrity": "sha1-K1aLJl7slExtnA3pw9u7ygNUzY4=",
+          "dev": true,
+          "requires": {
+            "p-locate": "^2.0.0",
+            "path-exists": "^3.0.0"
+          }
+        },
+        "p-limit": {
+          "version": "1.3.0",
+          "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-1.3.0.tgz",
+          "integrity": "sha512-vvcXsLAJ9Dr5rQOPk7toZQZJApBl2K4J6dANSsEuh6QI41JYcsS/qhTGa9ErIUUgK3WNQoJYvylxvjqmiqEA9Q==",
+          "dev": true,
+          "requires": {
+            "p-try": "^1.0.0"
+          }
+        },
+        "p-locate": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-2.0.0.tgz",
+          "integrity": "sha1-IKAQOyIqcMj9OcwuWAaA893l7EM=",
+          "dev": true,
+          "requires": {
+            "p-limit": "^1.1.0"
+          }
+        },
+        "path-exists": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-3.0.0.tgz",
+          "integrity": "sha1-zg6+ql94yxiSXqfYENe1mwEP1RU=",
+          "dev": true
+        }
+      }
+    },
     "prelude-ls": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/prelude-ls/-/prelude-ls-1.2.1.tgz",
@@ -8324,24 +8678,24 @@
       }
     },
     "read-pkg": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-2.0.0.tgz",
-      "integrity": "sha1-jvHAYjxqbbDcZxPEv6xGMysjaPg=",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-3.0.0.tgz",
+      "integrity": "sha1-nLxoaXj+5l0WwA4rGcI3/Pbjg4k=",
       "dev": true,
       "requires": {
-        "load-json-file": "^2.0.0",
+        "load-json-file": "^4.0.0",
         "normalize-package-data": "^2.3.2",
-        "path-type": "^2.0.0"
+        "path-type": "^3.0.0"
       }
     },
     "read-pkg-up": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/read-pkg-up/-/read-pkg-up-2.0.0.tgz",
-      "integrity": "sha1-a3KoBImE4MQeeVEP1en6mbO1Sb4=",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/read-pkg-up/-/read-pkg-up-3.0.0.tgz",
+      "integrity": "sha1-PtSWaF26D4/hGNBpHcUfSh/5bwc=",
       "dev": true,
       "requires": {
         "find-up": "^2.0.0",
-        "read-pkg": "^2.0.0"
+        "read-pkg": "^3.0.0"
       },
       "dependencies": {
         "find-up": {
@@ -8632,9 +8986,9 @@
       }
     },
     "spdx-license-ids": {
-      "version": "3.0.7",
-      "resolved": "https://registry.npmjs.org/spdx-license-ids/-/spdx-license-ids-3.0.7.tgz",
-      "integrity": "sha512-U+MTEOO0AiDzxwFvoa4JVnMV6mZlJKk2sBLt90s7G0Gd0Mlknc7kxEn3nuDPNZRta7O2uy8oLcZLVT+4sqNZHQ==",
+      "version": "3.0.9",
+      "resolved": "https://registry.npmjs.org/spdx-license-ids/-/spdx-license-ids-3.0.9.tgz",
+      "integrity": "sha512-Ki212dKK4ogX+xDo4CtOZBVIwhsKBEfsEEcwmJfLQzirgc2jIWdzg40Unxz/HzEUqM1WFzVlQSMF9kZZ2HboLQ==",
       "dev": true
     },
     "sprintf-js": {
diff --git a/package.json b/package.json
index fc740ff..a82be8a 100644
--- a/package.json
+++ b/package.json
@@ -21,9 +21,13 @@
     "@babel/plugin-syntax-class-properties": "^7.12.13",
     "@babel/preset-env": "^7.14.0",
     "chai": "^4.3.4",
-    "eslint": "^7.25.0",
-    "eslint-config-airbnb-base": "^14.2.1",
-    "eslint-plugin-import": "^2.22.1",
+    "eslint": "^7.27.0",
+    "eslint-config-semistandard": "^15.0.1",
+    "eslint-config-standard": "^16.0.3",
+    "eslint-plugin-import": "^2.23.3",
+    "eslint-plugin-node": "^11.1.0",
+    "eslint-plugin-promise": "^5.1.0",
+    "eslint-plugin-standard": "^5.0.0",
     "mocha": "^8.3.2"
   }
 }
diff --git a/src/Document.js b/src/Document.js
index 254d002..40af6b9 100644
--- a/src/Document.js
+++ b/src/Document.js
@@ -31,7 +31,9 @@
    * @param {number} [type] The type of the `Document`.
    * @param {libxmljs.ParserOptions} [options] The parser options.
    */
-  constructor(source = null, type = Document.TYPE_XML, options = null) {
+  constructor (source = null, type = Document.TYPE_XML, options = null) {
+    if (options === null) options = { noblanks: true };
+
     if (source !== null) {
       switch (type) {
         case Document.TYPE_XML:
@@ -56,7 +58,7 @@
   /**
    * An array containing the errors in the current `Document`.
    */
-  get errors() {
+  get errors () {
     if (!this._original) return [];
 
     return this._original.errors;
@@ -65,7 +67,7 @@
   /**
    * An array containing the validation errors in the current `Document`.
    */
-  get validationErrors() {
+  get validationErrors () {
     if (!this._original) return undefined;
 
     return this._original.validationErrors;
@@ -76,7 +78,7 @@
    * @param {number} idx The child index.
    * @returns {libxmljs.Element|null} A `libxmljs.Element` or `null`.
    */
-  child(idx) {
+  child (idx) {
     this.assertNoContentError();
 
     if (!idx) idx = 0;
@@ -88,7 +90,7 @@
    * Gets all the children of the root node.
    * @returns {libxmljs.Element[]} An array of `libxmljs.Element`s.
    */
-  childNodes() {
+  childNodes () {
     this.assertNoContentError();
 
     return this._original.childNodes();
@@ -99,7 +101,7 @@
    * @param {string} xpath The XPath to count.
    * @returns {number} The amount of results.
    */
-  count(xpath) {
+  count (xpath) {
     if (typeof xpath !== 'string') throw new Error('xpath must be a string.');
 
     return this.get(`count(${xpath})`);
@@ -109,7 +111,7 @@
    * Gets the `Document`'s encoding.
    * @returns {string} The `Document`'s encoding.
    */
-  encoding() {
+  encoding () {
     return this._original.encoding();
   }
 
@@ -118,7 +120,7 @@
    * @param {string} enc The encoding as a string.
    * @returns {Document} The `Document`.
    */
-  encoding(enc) {
+  encoding (enc) {
     this._original.encoding(enc);
 
     return this;
@@ -129,7 +131,7 @@
    * @param {string} xpath The XPath to find.
    * @returns {libxmljs.Element[]} An array of `libxmljs.Element`s.
    */
-  find(xpath) {
+  find (xpath) {
     this.assertNoContentError();
     if (typeof xpath !== 'string') throw new Error('xpath must be a string.');
 
@@ -146,10 +148,12 @@
    * @param {libxmljs.ParserOptions} [options] The parser options.
    * @returns {Document} The `Document`.
    */
-  fromHtml(html, options = {}) {
+  fromHtml (html, options = {}) {
     if (typeof html !== 'string') throw new Error('html must be a string.');
     if (typeof options !== 'object') throw new Error('options must be an object.');
 
+    if (options === {}) options = { noblanks: true };
+
     this._original = libxmljs.Document.fromHtml(html, options);
     this._hasContent = true;
 
@@ -162,10 +166,12 @@
    * @param {libxmljs.ParserOptions} [options] The parser options.
    * @returns {Document} The `Document`.
    */
-  fromHtmlFragment(htmlFragment, options = {}) {
+  fromHtmlFragment (htmlFragment, options = {}) {
     if (typeof htmlFragment !== 'string') throw new Error('htmlFragment must be a string.');
     if (typeof options !== 'object') throw new Error('options must be an object.');
 
+    if (options === {}) options = { noblanks: true };
+
     this._original = libxmljs.Document.fromHtmlFragment(htmlFragment, options);
     this._hasContent = true;
 
@@ -178,10 +184,12 @@
    * @param {libxmljs.ParserOptions} [options] The parser options.
    * @returns {Document} The `Document`.
    */
-  fromXml(xml, options = {}) {
+  fromXml (xml, options = {}) {
     if (typeof xml !== 'string') throw new Error('htmlFragment must be a string.');
     if (typeof options !== 'object') throw new Error('options must be an object.');
 
+    if (options === {}) options = { noblanks: true };
+
     this._original = libxmljs.Document.fromXml(xml, options);
     this._hasContent = true;
 
@@ -193,7 +201,7 @@
    * @param {string} xpath The XPath to get.
    * @returns {libxmljs.Element} A `libxmljs.Element`.
    */
-  get(xpath) {
+  get (xpath) {
     const found = this.find(xpath);
 
     if (found.length === undefined) return found; // found is not an array so we just return it.
@@ -206,7 +214,7 @@
    * Gets the `Document`'s DTD.
    * @returns {object} The DTD object.
    */
-  getDtd() {
+  getDtd () {
     return this._original.getDtd();
   }
 
@@ -214,7 +222,7 @@
    * Gets the `Document`'s namespaces.
    * @returns {libxmljs.Namespace[]} An array of `libxmljs.Namespace`s.
    */
-  namespaces() {
+  namespaces () {
     this.assertNoContentError();
 
     return this._original.namespaces();
@@ -226,7 +234,7 @@
    * @param {string} content The root's text content.
    * @returns {libxmljs.Node} The created `libxmljs.Node`.
    */
-  node(name, content) {
+  node (name, content) {
     if (!this._hasContent) this._hasContent = true;
 
     return this._original.node(name, content);
@@ -237,7 +245,7 @@
    * @param {object} rng The Relax NG.
    * @returns {boolean} Whether the `Document` is valid using Relax NG.
    */
-  rngValidate(rng) {
+  rngValidate (rng) {
     return this._original.rngValidate(rng);
   }
 
@@ -245,7 +253,7 @@
    * Gets the root.
    * @returns {libxmljs.Element|null} The root or `null`.
    */
-  root() {
+  root () {
     this.assertNoContentError();
 
     return this._original.root();
@@ -256,7 +264,7 @@
    * @param {libxmljs.Element} node The root `libxmljs.Element`.
    * @returns {libxmljs.Element} The created `libxmljs.Element`.
    */
-  root(node) {
+  root (node) {
     this.assertNoContentError();
 
     return this._original.root(node);
@@ -269,7 +277,7 @@
    * @param {string} sys The system ID for the DTD.
    * @returns {Document} The `Document`.
    */
-  setDtd(name, ext, sys) {
+  setDtd (name, ext, sys) {
     this._original.setDtd(name, ext, sys);
 
     return this;
@@ -281,7 +289,7 @@
    * @param {string} url The URL of the namespace.
    * @returns {Document} The `Document`.
    */
-  setNamespace(alias, url) {
+  setNamespace (alias, url) {
     if (typeof alias !== 'string') throw new Error('alias must be a string.');
     if (typeof url !== 'string') throw new Error('url must be a string.');
     if (!utils.isValidURL(url)) throw new Error('url is not a valid URL.');
@@ -299,7 +307,7 @@
    * @param {boolean} [formatting] Tells whether the ouput is formatted.
    * @returns {string} The `Document` as a string.
    */
-  toString(formatting = true) {
+  toString (formatting = true) {
     return this._original.toString(formatting);
   }
 
@@ -307,7 +315,7 @@
    * Returns the string "document".
    * @returns {string} "document".
    */
-  type() {
+  type () {
     return this._original.type();
   }
 
@@ -316,7 +324,7 @@
    * @param {Document} xsdDoc The XSD `Document`.
    * @returns {boolean} Whether the `Document` is valid. `validationErrors` contains the errors if any.
    */
-  validate(xsdDoc) {
+  validate (xsdDoc) {
     this.assertNoContentError();
     if (!xsdDoc) throw new Error('No XSD document to validate against.');
 
@@ -327,14 +335,14 @@
    * Gets the `Document`'s version.
    * @returns {string} The `Document`'s version.
    */
-  version() {
+  version () {
     return this._original.version();
   }
 
   /**
    * Throws an error if the `Document` has no content.
    */
-  assertNoContentError() {
+  assertNoContentError () {
     if (!this._hasContent) {
       const err = new Error('No parsed content found.');
       err.name = 'NoContentError';
diff --git a/src/utils.js b/src/utils.js
index e1e8a02..9a7df95 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -4,7 +4,7 @@
  * @param {string} xpath The XPath to add the prefix in.
  * @example addNamespacePrefixInPath('tei', '/TEI/text/body'); // returns '/tei:TEI/tei:text/tei:body/tei:p'
  */
-function addNamespacePrefixInPath(namespacePrefix, xpath) {
+function addNamespacePrefixInPath (namespacePrefix, xpath) {
   let fullPath = '';
 
   for (let i = 0; i < xpath.length; i++) {
@@ -20,7 +20,7 @@
  * Checks if a URL is valid.
  * @param {string} url The URL to check.
  */
-function isValidURL(url) {
+function isValidURL (url) {
   try {
     // eslint-disable-next-line no-unused-vars
     const _url = new URL(url);
diff --git a/test/run.js b/test/run.js
index 31f3692..3269789 100644
--- a/test/run.js
+++ b/test/run.js
@@ -3,13 +3,14 @@
 
 const chai = require('chai');
 const fs = require('fs');
+const path = require('path');
 const expected = require('./dataset/expected');
 const Document = require('../src/Document');
 
 const { expect } = chai;
 
 describe('Without any namespace', () => {
-  const fileContent = fs.readFileSync(`${__dirname}/dataset/xml/correct.xml`, 'utf-8');
+  const fileContent = fs.readFileSync(path.join(__dirname, 'dataset', 'xml', 'correct.xml'), 'utf-8');
   const xmlDoc = new Document(fileContent);
 
   describe('Tests on .find()', () => {
@@ -45,7 +46,7 @@
 });
 
 describe('With a namespace', () => {
-  const fileContent = fs.readFileSync(`${__dirname}/dataset/xml/correct-namespace.xml`, 'utf-8');
+  const fileContent = fs.readFileSync(path.join(__dirname, 'dataset', 'xml', 'correct-namespace.xml'), 'utf-8');
   const xmlDoc = new Document(fileContent);
 
   describe('Tests on .setNamespace()', () => {