添加eslint的配置文件

.eslintignore

+node_modules/*.js
+

.eslintrc.js

+module.exports = {
+  extends: [
+    "airbnb-base"
+  ],
+  rules: {
+    "semi": "off",
+    "func-names": "off",
+    "no-restricted-syntax": "off",
+    "no-underscore-dangle": "off",
+    "import/no-dynamic-require": "off",
+    'prefer-destructuring': "off",
+    "no-bitwise": "off",
+    "no-param-reassign": "off",
+    "no-await-in-loop": "off",
+    "consistent-return": "off",
+    "no-shadow" :"off",
+    "no-useless-escape": "off"
+  }
+}