diff --git a/.eslintignore b/.eslintignore
new file mode 100644
index 0000000..8730547
--- /dev/null
+++ b/.eslintignore
@@ -0,0 +1,12 @@
+# Ignore artifacts:
+dist
+
+lib
+npm-debug.log
+bower_components
+node_modules
+yarn-error.log
+yarn.lock
+
+src/*.ts
+/*.js
diff --git a/.eslintrc.json b/.eslintrc.json
new file mode 100644
index 0000000..a6890ef
--- /dev/null
+++ b/.eslintrc.json
@@ -0,0 +1,24 @@
+{
+  "env": {
+    "browser": true,
+    "es2021": true,
+    "mocha": true
+  },
+  "extends": ["airbnb-base", "plugin:prettier/recommended"],
+  "parserOptions": {
+    "ecmaVersion": 12,
+    "sourceType": "module"
+  },
+  "plugins": ["prettier"],
+  "rules": {
+    "prettier/prettier": "error",
+    "prefer-const": "off",
+    "camelcase": "off",
+    "no-underscore-dangle": "off",
+    "consistent-return": "off",
+    /* Remove the necessity to use this on classes */
+    "class-methods-use-this": "off",
+    /* Enable variables declarations from shadowing variables declared in the outer scope */
+    "no-shadow": "off"
+  }
+}
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
new file mode 100644
index 0000000..e0dadfc
--- /dev/null
+++ b/.github/workflows/publish.yml
@@ -0,0 +1,47 @@
+# This workflow will run tests using node and then publish a package to GitHub Packages when a release is created
+# For more information see: https://help.github.com/actions/language-and-framework-guides/publishing-nodejs-packages
+
+name: publish
+
+on:
+  release:
+    types: [created]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v1
+        with:
+          node-version: 14
+      - run: npm ci
+      - run: npm test
+
+  publish-npm:
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v1
+        with:
+          node-version: 14
+          registry-url: https://registry.npmjs.org/
+      - run: npm ci
+      - run: npm publish
+        env:
+          NODE_AUTH_TOKEN: ${{secrets.npm_token}}
+
+  publish-gpr:
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v1
+        with:
+          node-version: 14
+          registry-url: https://npm.pkg.github.com/
+      - run: npm ci
+      - run: npm publish
+        env:
+          NODE_AUTH_TOKEN: ${{secrets.GITHUB_TOKEN}}
diff --git a/.github/workflows/test.js.yml b/.github/workflows/test.js.yml
index ccef023..4f6ebd8 100644
--- a/.github/workflows/test.js.yml
+++ b/.github/workflows/test.js.yml
@@ -11,7 +11,6 @@ on:
 
 jobs:
   build:
-
     runs-on: ubuntu-latest
 
     strategy:
@@ -28,4 +27,6 @@ jobs:
         node-version: ${{ matrix.node-version }}
     - run: npm ci
     - run: npm run build --if-present
+    - run: npm run lint
     - run: npm test
+
diff --git a/package-lock.json b/package-lock.json
index ce794c4..136403a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1081,6 +1081,56 @@
       "integrity": "sha512-HyYEUDeIj5rRQU2Hk5HTB2uHsbRQpF70nvMhVzi+VJR0X+xNEhjPui4/kBf3VeH/wqD28PT4sVOm8qqLjBrSZg==",
       "dev": true
     },
+    "@eslint/eslintrc": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/@eslint/eslintrc/-/eslintrc-0.3.0.tgz",
+      "integrity": "sha512-1JTKgrOKAHVivSvOYw+sJOunkBjUOvjqWk1DPja7ZFhIS2mX/4EgTT8M7eTK9jrKhL/FvXXEbQwIs3pg1xp3dg==",
+      "dev": true,
+      "requires": {
+        "ajv": "^6.12.4",
+        "debug": "^4.1.1",
+        "espree": "^7.3.0",
+        "globals": "^12.1.0",
+        "ignore": "^4.0.6",
+        "import-fresh": "^3.2.1",
+        "js-yaml": "^3.13.1",
+        "lodash": "^4.17.20",
+        "minimatch": "^3.0.4",
+        "strip-json-comments": "^3.1.1"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "4.3.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.1.tgz",
+          "integrity": "sha512-doEwdvm4PCeK4K3RQN2ZC2BYUBaxwLARCqZmMjtF8a51J2Rb0xpVloFRnCODwqjpwnAoao4pelN8l3RJdv3gRQ==",
+          "dev": true,
+          "requires": {
+            "ms": "2.1.2"
+          }
+        },
+        "globals": {
+          "version": "12.4.0",
+          "resolved": "https://registry.npmjs.org/globals/-/globals-12.4.0.tgz",
+          "integrity": "sha512-BWICuzzDvDoH54NHKCseDanAhE3CeDorgDL5MT6LMXXj2WCnd9UC2szdk4AWLfjdgNBCXLUanXYcpBBKOSWGwg==",
+          "dev": true,
+          "requires": {
+            "type-fest": "^0.8.1"
+          }
+        },
+        "ms": {
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+          "dev": true
+        },
+        "type-fest": {
+          "version": "0.8.1",
+          "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.8.1.tgz",
+          "integrity": "sha512-4dbzIzqvjtgiM5rw1k5rEHtBANKmdudhGyBEajN01fEyhaAIhsoKNy6y7+IN93IfpFtwY9iqi7kD+xwKhQsNJA==",
+          "dev": true
+        }
+      }
+    },
     "@mrmlnc/readdir-enhanced": {
       "version": "2.2.1",
       "resolved": "https://registry.npmjs.org/@mrmlnc/readdir-enhanced/-/readdir-enhanced-2.2.1.tgz",
@@ -1200,6 +1250,12 @@
       "integrity": "sha512-3c+yGKvVP5Y9TYBEibGNR+kLtijnj7mYrXRg+WpFb2X9xm04g/DXYkfg4hmzJQosc9snFNUPkbYIhu+KAm6jJw==",
       "dev": true
     },
+    "@types/json5": {
+      "version": "0.0.29",
+      "resolved": "https://registry.npmjs.org/@types/json5/-/json5-0.0.29.tgz",
+      "integrity": "sha1-7ihweulOEdK4J7y+UnC86n8+ce4=",
+      "dev": true
+    },
     "@types/minimatch": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/@types/minimatch/-/minimatch-3.0.3.tgz",
@@ -1419,6 +1475,12 @@
       "integrity": "sha512-XNP0PqF1XD19ZlLKvB7cMmnZswW4C/03pRHgirB30uSJTaS3A3V1/P4sS3HPvFmjoriPCJQs+JDSbm4bL1TxGQ==",
       "dev": true
     },
+    "acorn-jsx": {
+      "version": "5.3.1",
+      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.3.1.tgz",
+      "integrity": "sha512-K0Ptm/47OKfQRpNQ2J/oIN/3QYiK6FwW+eJbILhsdxh2WTLdl+30o8aGdTbm5JbffpFFAg/g+zi1E+jvJha5ng==",
+      "dev": true
+    },
     "aggregate-error": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/aggregate-error/-/aggregate-error-3.1.0.tgz",
@@ -1574,6 +1636,19 @@
       "integrity": "sha1-3wEKoSh+Fku9pvlyOwqWoexBh6E=",
       "dev": true
     },
+    "array-includes": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/array-includes/-/array-includes-3.1.2.tgz",
+      "integrity": "sha512-w2GspexNQpx+PutG3QpT437/BenZBj0M/MZGn5mzv/MofYqo0xmRHzn4lFsoDlWJ+THYsGJmFlW68WlDFx7VRw==",
+      "dev": true,
+      "requires": {
+        "call-bind": "^1.0.0",
+        "define-properties": "^1.1.3",
+        "es-abstract": "^1.18.0-next.1",
+        "get-intrinsic": "^1.0.1",
+        "is-string": "^1.0.5"
+      }
+    },
     "array-union": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/array-union/-/array-union-1.0.2.tgz",
@@ -1595,6 +1670,17 @@
       "integrity": "sha1-qJS3XUvE9s1nnvMkSp/Y9Gri1Cg=",
       "dev": true
     },
+    "array.prototype.flat": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/array.prototype.flat/-/array.prototype.flat-1.2.4.tgz",
+      "integrity": "sha512-4470Xi3GAPAjZqFcljX2xzckv1qeKPizoNkiS0+O4IoPR2ZNpcjE0pkhdihlDouK+x6QOast26B4Q/O9DJnwSg==",
+      "dev": true,
+      "requires": {
+        "call-bind": "^1.0.0",
+        "define-properties": "^1.1.3",
+        "es-abstract": "^1.18.0-next.1"
+      }
+    },
     "arrify": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/arrify/-/arrify-1.0.1.tgz",
@@ -1947,6 +2033,16 @@
         "unset-value": "^1.0.0"
       }
     },
+    "call-bind": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/call-bind/-/call-bind-1.0.2.tgz",
+      "integrity": "sha512-7O+FbCihrB5WGbFYesctwmTKae6rOiIzmz1icreWJ+0aA7LJfuqhEso2T9ncpcFtzMQtzXf2QGGueWJGTYsqrA==",
+      "dev": true,
+      "requires": {
+        "function-bind": "^1.1.1",
+        "get-intrinsic": "^1.0.2"
+      }
+    },
     "call-me-maybe": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/call-me-maybe/-/call-me-maybe-1.0.1.tgz",
@@ -2238,6 +2334,12 @@
         }
       }
     },
+    "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
+    },
     "connect": {
       "version": "3.7.0",
       "resolved": "https://registry.npmjs.org/connect/-/connect-3.7.0.tgz",
@@ -2250,6 +2352,12 @@
         "utils-merge": "1.0.1"
       }
     },
+    "contains-path": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/contains-path/-/contains-path-0.1.0.tgz",
+      "integrity": "sha1-/ozxhP9mcLa67wGp1IYaXL7EEgo=",
+      "dev": true
+    },
     "content-type": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/content-type/-/content-type-1.0.4.tgz",
@@ -2471,6 +2579,12 @@
       "integrity": "sha512-LOHxIOaPYdHlJRtCQfDIVZtfw/ufM8+rVj649RIHzcm/vGwQRXFt6OPqIFWsm2XEMrNIEtWR64sY1LEKD2vAOA==",
       "dev": true
     },
+    "deep-is": {
+      "version": "0.1.3",
+      "resolved": "https://registry.npmjs.org/deep-is/-/deep-is-0.1.3.tgz",
+      "integrity": "sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ=",
+      "dev": true
+    },
     "define-properties": {
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/define-properties/-/define-properties-1.1.3.tgz",
@@ -2570,6 +2684,15 @@
         }
       }
     },
+    "doctrine": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-3.0.0.tgz",
+      "integrity": "sha512-yS+Q5i3hBf7GBkd4KG8a7eBNNWNGLTaEwwYWUijIYM7zrlYDM0BFXHjjPWlWZ1Rg7UaddZeIDmi9jF3HmqiQ2w==",
+      "dev": true,
+      "requires": {
+        "esutils": "^2.0.2"
+      }
+    },
     "dom-serialize": {
       "version": "2.2.1",
       "resolved": "https://registry.npmjs.org/dom-serialize/-/dom-serialize-2.2.1.tgz",
@@ -2746,12 +2869,45 @@
         "is-arrayish": "^0.2.1"
       }
     },
+    "es-abstract": {
+      "version": "1.18.0-next.2",
+      "resolved": "https://registry.npmjs.org/es-abstract/-/es-abstract-1.18.0-next.2.tgz",
+      "integrity": "sha512-Ih4ZMFHEtZupnUh6497zEL4y2+w8+1ljnCyaTa+adcoafI1GOvMwFlDjBLfWR7y9VLfrjRJe9ocuHY1PSR9jjw==",
+      "dev": true,
+      "requires": {
+        "call-bind": "^1.0.2",
+        "es-to-primitive": "^1.2.1",
+        "function-bind": "^1.1.1",
+        "get-intrinsic": "^1.0.2",
+        "has": "^1.0.3",
+        "has-symbols": "^1.0.1",
+        "is-callable": "^1.2.2",
+        "is-negative-zero": "^2.0.1",
+        "is-regex": "^1.1.1",
+        "object-inspect": "^1.9.0",
+        "object-keys": "^1.1.1",
+        "object.assign": "^4.1.2",
+        "string.prototype.trimend": "^1.0.3",
+        "string.prototype.trimstart": "^1.0.3"
+      }
+    },
     "es-module-lexer": {
       "version": "0.3.26",
       "resolved": "https://registry.npmjs.org/es-module-lexer/-/es-module-lexer-0.3.26.tgz",
       "integrity": "sha512-Va0Q/xqtrss45hWzP8CZJwzGSZJjDM5/MJRE3IXXnUCcVLElR9BRaE9F62BopysASyc4nM3uwhSW7FFB9nlWAA==",
       "dev": true
     },
+    "es-to-primitive": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/es-to-primitive/-/es-to-primitive-1.2.1.tgz",
+      "integrity": "sha512-QCOllgZJtaUo9miYBcLChTUaHNjJF3PYs1VidD7AwiEj1kYxKeQTctLAezAOH5ZKRH0g2IgPn6KwB4IT8iRpvA==",
+      "dev": true,
+      "requires": {
+        "is-callable": "^1.1.4",
+        "is-date-object": "^1.0.1",
+        "is-symbol": "^1.0.2"
+      }
+    },
     "escalade": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/escalade/-/escalade-3.1.1.tgz",
@@ -2770,6 +2926,173 @@
       "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=",
       "dev": true
     },
+    "eslint": {
+      "version": "7.20.0",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-7.20.0.tgz",
+      "integrity": "sha512-qGi0CTcOGP2OtCQBgWZlQjcTuP0XkIpYFj25XtRTQSHC+umNnp7UMshr2G8SLsRFYDdAPFeHOsiteadmMH02Yw==",
+      "dev": true,
+      "requires": {
+        "@babel/code-frame": "7.12.11",
+        "@eslint/eslintrc": "^0.3.0",
+        "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",
+        "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",
+        "file-entry-cache": "^6.0.0",
+        "functional-red-black-tree": "^1.0.1",
+        "glob-parent": "^5.0.0",
+        "globals": "^12.1.0",
+        "ignore": "^4.0.6",
+        "import-fresh": "^3.0.0",
+        "imurmurhash": "^0.1.4",
+        "is-glob": "^4.0.0",
+        "js-yaml": "^3.13.1",
+        "json-stable-stringify-without-jsonify": "^1.0.1",
+        "levn": "^0.4.1",
+        "lodash": "^4.17.20",
+        "minimatch": "^3.0.4",
+        "natural-compare": "^1.4.0",
+        "optionator": "^0.9.1",
+        "progress": "^2.0.0",
+        "regexpp": "^3.1.0",
+        "semver": "^7.2.1",
+        "strip-ansi": "^6.0.0",
+        "strip-json-comments": "^3.1.0",
+        "table": "^6.0.4",
+        "text-table": "^0.2.0",
+        "v8-compile-cache": "^2.0.3"
+      },
+      "dependencies": {
+        "ansi-styles": {
+          "version": "4.3.0",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
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+          "dev": true,
+          "requires": {
+            "color-convert": "^2.0.1"
+          }
+        },
+        "chalk": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.0.tgz",
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+          "dev": true,
+          "requires": {
+            "ansi-styles": "^4.1.0",
+            "supports-color": "^7.1.0"
+          }
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+          "dev": true,
+          "requires": {
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+          }
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+          "requires": {
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+          }
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+          "dev": true,
+          "requires": {
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+          }
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+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/json5/-/json5-1.0.1.tgz",
+          "integrity": "sha512-aKS4WQjPenRxiQsC93MNfjx+nbF4PAdYzmd/1JIj8HYzqfbu86beTuNgXDzPknWk0n0uARlyewZo4s++ES36Ow==",
+          "dev": true,
+          "requires": {
+            "minimist": "^1.2.0"
+          }
+        },
+        "minimist": {
+          "version": "1.2.5",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
+          "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==",
+          "dev": true
+        }
+      }
+    },
     "tsd": {
       "version": "0.7.4",
       "resolved": "https://registry.npmjs.org/tsd/-/tsd-0.7.4.tgz",
@@ -7085,6 +8018,15 @@
       "integrity": "sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==",
       "dev": true
     },
+    "type-check": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.4.0.tgz",
+      "integrity": "sha512-XleUoc9uwGXqjWwXaUTZAmzMcFZ5858QA2vvx1Ur5xIcixXIP+8LnFDgRplU30us6teqdlskFfu+ae4K79Ooew==",
+      "dev": true,
+      "requires": {
+        "prelude-ls": "^1.2.1"
+      }
+    },
     "type-detect": {
       "version": "4.0.8",
       "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.8.tgz",
@@ -7744,6 +8686,12 @@
       "integrity": "sha512-JcKqAHLPxcdb9KM49dufGXn2x3ssnfjbcaQdLlfZsL9rH9wgDQjUtDxbo8NE0F6SFvydeu1VhZe7hZuHsB2/pw==",
       "dev": true
     },
+    "word-wrap": {
+      "version": "1.2.3",
+      "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.3.tgz",
+      "integrity": "sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==",
+      "dev": true
+    },
     "worker-farm": {
       "version": "1.7.0",
       "resolved": "https://registry.npmjs.org/worker-farm/-/worker-farm-1.7.0.tgz",
diff --git a/package.json b/package.json
index c23bced..812aea2 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,11 @@
   "license": "MIT",
   "main": "dist/clipboard.js",
   "types": "src/clipboard.d.ts",
-  "keywords": ["clipboard", "copy", "cut"],
+  "keywords": [
+    "clipboard",
+    "copy",
+    "cut"
+  ],
   "dependencies": {
     "good-listener": "^1.2.2",
     "select": "^1.1.2",
@@ -19,6 +23,11 @@
     "babel-loader": "^8.2.2",
     "chai": "^4.2.0",
     "cross-env": "^7.0.3",
+    "eslint": "^7.20.0",
+    "eslint-config-airbnb-base": "^14.2.1",
+    "eslint-config-prettier": "^7.2.0",
+    "eslint-plugin-import": "^2.22.1",
+    "eslint-plugin-prettier": "^3.3.1",
     "husky": "^5.0.9",
     "karma": "^6.0.0",
     "karma-chai": "^0.1.0",
@@ -42,9 +51,13 @@
     "build-min": "cross-env NODE_ENV=production webpack",
     "build-watch": "webpack --watch",
     "test": "karma start --single-run",
-    "prepublish": "npm run build"
+    "prepublish": "npm run build",
+    "lint": "eslint --ext .js src/"
   },
   "lint-staged": {
-    "*.{js,css,md}": "prettier --write"
+    "*.{js,css,md}": [
+      "prettier --write",
+      "eslint --fix"
+    ]
   }
 }
diff --git a/src/clipboard.js b/src/clipboard.js
index 06ab8c6..6e26253 100644
--- a/src/clipboard.js
+++ b/src/clipboard.js
@@ -1,6 +1,21 @@
-import ClipboardAction from './clipboard-action';
 import Emitter from 'tiny-emitter';
 import listen from 'good-listener';
+import ClipboardAction from './clipboard-action';
+
+/**
+ * Helper function to retrieve attribute value.
+ * @param {String} suffix
+ * @param {Element} element
+ */
+function getAttributeValue(suffix, element) {
+  const attribute = `data-clipboard-${suffix}`;
+
+  if (!element.hasAttribute(attribute)) {
+    return;
+  }
+
+  return element.getAttribute(attribute);
+}
 
 /**
  * Base class which takes one or more elements, adds event listeners to them,
@@ -62,7 +77,7 @@ class Clipboard extends Emitter {
       target: this.target(trigger),
       text: this.text(trigger),
       container: this.container,
-      trigger: trigger,
+      trigger,
       emitter: this,
     });
   }
@@ -124,19 +139,4 @@ class Clipboard extends Emitter {
   }
 }
 
-/**
- * Helper function to retrieve attribute value.
- * @param {String} suffix
- * @param {Element} element
- */
-function getAttributeValue(suffix, element) {
-  const attribute = `data-clipboard-${suffix}`;
-
-  if (!element.hasAttribute(attribute)) {
-    return;
-  }
-
-  return element.getAttribute(attribute);
-}
-
 export default Clipboard;
diff --git a/test/clipboard-action.js b/test/clipboard-action.js
index 7084286..b589b4c 100644
--- a/test/clipboard-action.js
+++ b/test/clipboard-action.js
@@ -1,5 +1,5 @@
-import ClipboardAction from '../src/clipboard-action';
 import Emitter from 'tiny-emitter';
+import ClipboardAction from '../src/clipboard-action';
 
 describe('ClipboardAction', () => {
   before(() => {
@@ -57,7 +57,7 @@ describe('ClipboardAction', () => {
   describe('#set action', () => {
     it('should throw an error since "action" is invalid', (done) => {
       try {
-        new ClipboardAction({
+        let clip = new ClipboardAction({
           text: 'foo',
           action: 'paste',
         });
@@ -74,7 +74,7 @@ describe('ClipboardAction', () => {
   describe('#set target', () => {
     it('should throw an error since "target" do not match any element', (done) => {
       try {
-        new ClipboardAction({
+        let clip = new ClipboardAction({
           target: document.querySelector('#foo'),
         });
       } catch (e) {