{"id":590,"date":"2019-10-19T20:17:11","date_gmt":"2019-10-19T12:17:11","guid":{"rendered":"http:\/\/blog.xrhoujie.com\/?p=590"},"modified":"2019-10-21T20:19:51","modified_gmt":"2019-10-21T12:19:51","slug":"eslint-%e9%85%8d%e7%bd%ae%e4%bd%bf%e7%94%a8%e8%bd%ac","status":"publish","type":"post","link":"http:\/\/blog.xrhoujie.com\/?p=590","title":{"rendered":"ESLint &#8211;   \u914d\u7f6e\u4f7f\u7528(\u8f6c)"},"content":{"rendered":"<p>ESLint\u662f\u4e00\u4e2a\u7528\u6765\u8bc6\u522b ECMAScript \u5e76\u4e14\u6309\u7167\u89c4\u5219\u7ed9\u51fa\u62a5\u544a\u7684\u4ee3\u7801\u68c0\u6d4b\u5de5\u5177\uff0c\u4f7f\u7528\u5b83\u53ef\u4ee5\u907f\u514d\u4f4e\u7ea7\u9519\u8bef\u548c\u7edf\u4e00\u4ee3\u7801\u7684\u98ce\u683c\u3002ESLint\u88ab\u8bbe\u8ba1\u4e3a\u5b8c\u5168\u53ef\u914d\u7f6e\u7684\uff0c\u4e3b\u8981\u6709\u4e24\u79cd\u65b9\u5f0f\u6765\u914d\u7f6eESLint\uff1a<\/p>\n<ul>\n<li>\u5728\u6ce8\u91ca\u4e2d\u914d\u7f6e\uff1a\u4f7f\u7528JavaScript\u6ce8\u91ca\u76f4\u63a5\u628a\u914d\u7f6e\u5d4c\u5165\u5230JS\u6587\u4ef6\u4e2d\u3002<\/li>\n<li>\u914d\u7f6e\u6587\u4ef6\uff1a\u4f7f\u7528\u4e0b\u9762\u4efb\u4e00\u7684\u6587\u4ef6\u6765\u4e3a\u5168\u90e8\u7684\u76ee\u5f55\u548c\u5b83\u7684\u5b50\u76ee\u5f55\u6307\u5b9a\u914d\u7f6e\u4fe1\u606f\u3002\n<ul>\n<li>javascript\uff1a\u4f7f\u7528<code>.eslintrc.js<\/code>\u6587\u4ef6\u5e76\u5bfc\u51fa\u4e00\u4e2a\u5305\u542b\u914d\u7f6e\u7684\u5bf9\u8c61\u3002<\/li>\n<li>YAML\uff1a<code>.eslintrc.yaml<\/code>\u6216\u8005<code>.eslintrc.yml<\/code><\/li>\n<li>JSON\uff1a<code>.eslintrc.json<\/code>\uff0c\u5e76\u4e14\u6b64\u6587\u4ef6\u5141\u8bb8\u4f7f\u7528JS\u5f62\u5f0f\u7684\u6ce8\u91ca<\/li>\n<li>\u5e9f\u5f03\u7684\u7528\u6cd5\uff1a<code>.eslintrc<\/code>\uff0c\u6b64\u6587\u4ef6\u53ef\u4ee5\u662fJSON\u6216\u8005YAML<\/li>\n<li>package.json\uff1a\u5728<code>package.json<\/code>\u6587\u4ef6\u4e2d\u521b\u5efa<code>eslintConfig<\/code>\u5c5e\u6027\uff0c\u6240\u6709\u7684\u914d\u7f6e\u5305\u542b\u5728\u6b64\u5c5e\u6027\u4e2d\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u8fd9\u4e9b\u6587\u4ef6\u7684\u4f18\u5148\u7ea7\u5219\u662f\u6309\u7167\u4ee5\u4e0a\u51fa\u73b0\u7684\u987a\u5e8f\uff08<code>.eslintrc.js<\/code>\u00a0&gt;\u00a0<code>.eslintrc.yaml<\/code>\u00a0&gt;\u00a0<code>.eslintrc.yml<\/code>\u00a0&gt;\u00a0<code>.eslintrc.json<\/code>\u00a0&gt;\u00a0<code>.eslintrc<\/code>\u00a0&gt;\u00a0<code>package.json<\/code>\uff09\u3002<\/p>\n<p>\u53ef\u4ee5\u88ab\u914d\u7f6e\u7684\u4fe1\u606f\u4e3b\u8981\u5206\u4e3a3\u7c7b\uff1a<\/p>\n<ul>\n<li>Environments\uff1a\u4f60\u7684 javascript \u811a\u6b65\u5c06\u8981\u8fd0\u884c\u5728\u4ec0\u4e48\u73af\u5883\uff08\u5982\uff1anodejs\uff0cbrowser\uff0ccommonjs\u7b49\uff09\u4e2d\u3002<\/li>\n<li>Globals\uff1a\u6267\u884c\u4ee3\u7801\u65f6\u811a\u6b65\u9700\u8981\u8bbf\u95ee\u7684\u989d\u5916\u5168\u5c40\u53d8\u91cf\u3002<\/li>\n<li>Rules\uff1a\u5f00\u542f\u67d0\u4e9b\u89c4\u5219\uff0c\u4e5f\u53ef\u4ee5\u8bbe\u7f6e\u89c4\u5219\u7684\u7b49\u7ea7\u3002<\/li>\n<\/ul>\n<h1>\u5b89\u88c5<\/h1>\n<hr \/>\n<ul>\n<li>\u5168\u5c40\u5b89\u88c5<\/li>\n<\/ul>\n<pre class=\"line-numbers  language-undefined\"><code class=\"  language-undefined\">npm i -g eslint\r\n<\/code><\/pre>\n<ul>\n<li>\u5c40\u90e8\u5b89\u88c5\uff08\u63a8\u8350\uff09<\/li>\n<\/ul>\n<pre class=\"line-numbers  language-undefined\"><code class=\"  language-undefined\">npm i -D eslint\r\n<\/code><\/pre>\n<p>\u5b89\u88c5\u5b8c\u6bd5\u540e\uff0c\u63a5\u4e0b\u6765\u65b0\u5efa\u4e00\u4e2a\u914d\u7f6e\u6587\u4ef6<code>.eslintrc.js<\/code>\uff0c\u6216\u8005\u4f7f\u7528\u5982\u4e0b\u7684\u547d\u4ee4\u884c\u6765\u81ea\u52a8\u751f\u6210\u3002<\/p>\n<pre class=\"line-numbers  language-undefined\"><code class=\"  language-undefined\">eslint --init\r\n<\/code><\/pre>\n<h1>\u914d\u7f6e<\/h1>\n<hr \/>\n<h2>\u6307\u5b9a\u6267\u884c\u73af\u5883<\/h2>\n<p>JavaScript \u4ee3\u7801\u53ef\u4ee5\u8fd0\u884c\u5728\u6d4f\u89c8\u5668\u6216 nodejs \u7b49\u73af\u5883\u4e2d\uff0c\u6bcf\u4e2a\u73af\u5883\u7684\u5168\u5c40\u53d8\u91cf\u90fd\u4e0d\u5c3d\u76f8\u540c\uff08\u5982 nodejs \u4e2d\u6ca1\u6709 DOM \u76f8\u5173\u7684\u5168\u5c40\u53d8\u91cf\uff09\u3002\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u53ef\u4ee5\u81ea\u7531\u7684\u6307\u5b9a\u6267\u884c\u73af\u5883\u3002<\/p>\n<pre class=\"line-numbers  language-java\"><code class=\"  language-java\"><span class=\"token comment\">\/\/ .eslintrc.js<\/span>\r\n<span class=\"token keyword\">module<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">exports<\/span> <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">{<\/span>\r\n  env<span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>\r\n    browser<span class=\"token operator\">:<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">,<\/span>\r\n    node<span class=\"token operator\">:<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">,<\/span>\r\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\r\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\r\n<\/code><\/pre>\n<p>\u6240\u6709\u7684\u73af\u5883\u53ef\u4ee5\u5728<a href=\"https:\/\/link.jianshu.com\/?t=https:\/\/eslint.org\/docs\/user-guide\/configuring#specifying-environments\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">\u5b98\u7f51<\/a>\u4e0a\u67e5\u8be2\u3002<\/p>\n<h2>\u6307\u5b9a\u5168\u5c40\u53d8\u91cf<\/h2>\n<p>\u53ef\u4ee5\u5728\u914d\u7f6e\u6587\u4ef6\u6216\u6ce8\u91ca\u4e2d\u6307\u5b9a\u989d\u5916\u7684\u5168\u5c40\u53d8\u91cf\uff0c<code>false<\/code>\u8868\u660e\u53d8\u91cf\u53ea\u8bfb\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u6ce8\u91ca\u6765\u914d\u7f6e\uff1a<\/li>\n<\/ul>\n<pre class=\"line-numbers  language-bash\"><code class=\"  language-bash\">\/* global var1, var2 *\/\r\n\/* global var1:false, var2:false *\/\r\n<\/code><\/pre>\n<ul>\n<li>\u4f7f\u7528\u914d\u7f6e\u6587\u4ef6\u6765\u914d\u7f6e\uff1a<\/li>\n<\/ul>\n<pre class=\"line-numbers  language-java\"><code class=\"  language-java\"><span class=\"token comment\">\/\/ .eslintrc.js<\/span>\r\n<span class=\"token keyword\">module<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">exports<\/span> <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">{<\/span>\r\n  globals<span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>\r\n    var1<span class=\"token operator\">:<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">,<\/span>\r\n    var2<span class=\"token operator\">:<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">,<\/span>\r\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\r\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\r\n<\/code><\/pre>\n<h2>\u89c4\u5219<\/h2>\n<p>\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u53ef\u4ee5\u8bbe\u7f6e\u4e00\u4e9b\u89c4\u5219\u3002<\/p>\n<p>\u8fd9\u4e9b\u89c4\u5219\u7684\u7b49\u7ea7\u6709\u4e09\u79cd\uff1a<\/p>\n<ul>\n<li>&#8220;off&#8221; \u6216\u8005 0\uff1a\u5173\u95ed\u89c4\u5219\u3002<\/li>\n<li>&#8220;warn&#8221; \u6216\u8005 1\uff1a\u6253\u5f00\u89c4\u5219\uff0c\u5e76\u4e14\u4f5c\u4e3a\u4e00\u4e2a\u8b66\u544a\uff08\u4e0d\u5f71\u54cdexit code\uff09\u3002<\/li>\n<li>&#8220;error&#8221; \u6216\u8005 2\uff1a\u6253\u5f00\u89c4\u5219\uff0c\u5e76\u4e14\u4f5c\u4e3a\u4e00\u4e2a\u9519\u8bef\uff08exit code\u5c06\u4f1a\u662f1\uff09\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u914d\u7f6e\u6587\u4ef6\u6765\u914d\u7f6e<\/li>\n<\/ul>\n<pre class=\"line-numbers  language-java\"><code class=\"  language-java\"><span class=\"token comment\">\/\/ .eslintrc.js<\/span>\r\n<span class=\"token keyword\">module<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">exports<\/span> <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">{<\/span>\r\n  rules<span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>\r\n    eqeqeq<span class=\"token operator\">:<\/span> <span class=\"token string\">'off'<\/span><span class=\"token punctuation\">,<\/span>\r\n    curly<span class=\"token operator\">:<\/span> <span class=\"token string\">'error'<\/span><span class=\"token punctuation\">,<\/span>\r\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\r\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\r\n<\/code><\/pre>\n<ul>\n<li>\u4f7f\u7528\u6ce8\u91ca\u6765\u914d\u7f6e<\/li>\n<\/ul>\n<pre class=\"line-numbers  language-bash\"><code class=\"  language-bash\">\/* eslint eqeqeq: \"off\", curly: \"error\" *\/\r\n\/* eslint eqeqeq: 0, curly: 2 *\/\r\n<\/code><\/pre>\n<p>\u4e5f\u53ef\u4ee5\u5728\u6ce8\u91ca\u4e2d\u5173\u95ed\u6240\u6709\u6216\u8005\u67d0\u4e2a\u89c4\u5219\uff1a<\/p>\n<pre class=\"line-numbers  language-cpp\"><code class=\"  language-cpp\">\/* eslint-disable *\/\r\n\/* eslint-enable *\/\r\n\r\n\/* eslint-disable no-alert, no-console *\/\r\n\/* eslint-enable no-alert, no-console *\/\r\n<\/code><\/pre>\n<p>\u5177\u4f53\u7684\u89c4\u5219\u53ef\u4ee5\u5728<a href=\"https:\/\/link.jianshu.com\/?t=http:\/\/eslint.org\/docs\/rules\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">\u5b98\u7f51<\/a>\u4e0a\u627e\u5230\uff0c\u6216\u8005\u4f7f\u7528\u522b\u4eba\u5199\u597d\u7684\u914d\u7f6e\uff0c\u4f8b\u5982<a href=\"https:\/\/link.jianshu.com\/?t=https:\/\/www.npmjs.com\/package\/eslint-config-airbnb\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">eslint-config-airbnb<\/a>\u3002<\/p>\n<h1>\u4f7f\u7528\u65b9\u6cd5<\/h1>\n<hr \/>\n<h2>\u547d\u4ee4\u884c<\/h2>\n<p>\u901a\u8fc7\u547d\u4ee4\u884c\u5de5\u5177\u6765\u4f7f\u7528 eslint \u3002<\/p>\n<pre class=\"line-numbers  language-css\"><code class=\"  language-css\">eslint [options] file.js [file.js] [dir]\r\n<\/code><\/pre>\n<h2>\u7f16\u8f91\u5668<\/h2>\n<p>\u914d\u5408\u76f8\u5e94\u7684<a href=\"https:\/\/link.jianshu.com\/?t=https:\/\/marketplace.visualstudio.com\/items?itemName=dbaeumer.vscode-eslint\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">\u63d2\u4ef6<\/a>\uff0c\u5728<a href=\"https:\/\/link.jianshu.com\/?t=https:\/\/code.visualstudio.com\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">vscode<\/a>\u4e2d\u76f4\u63a5\u663e\u793a\u9519\u8bef\u548c\u8b66\u544a\u3002<\/p>\n<div class=\"image-package\">\n<div class=\"image-container\">\n<div class=\"image-container-fill\">\u00a0<img class=\"\" src=\"https:\/\/upload-images.jianshu.io\/upload_images\/61902-7c43e966aa1fa028.png?imageMogr2\/auto-orient\/strip|imageView2\/2\/w\/1194\/format\/webp\" data-original-src=\"\/\/upload-images.jianshu.io\/upload_images\/61902-7c43e966aa1fa028.png\" data-original-width=\"1194\" data-original-height=\"610\" data-original-format=\"image\/png\" data-original-filesize=\"35831\" data-image-index=\"0\" \/><\/div>\n<\/div>\n<div class=\"image-caption\">lint<\/div>\n<\/div>\n<p>\u9664\u4e86\u4e0a\u8ff0\uff0c\u8fd8\u53ef\u4ee5\u914d\u5408<a href=\"https:\/\/link.jianshu.com\/?t=https:\/\/gulpjs.com\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">gulp<\/a>\u3001<a href=\"https:\/\/link.jianshu.com\/?t=https:\/\/webpack.js.org\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">webpack<\/a>\u7b49\u5de5\u5177\u6765\u4f7f\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>ESLint\u662f\u4e00\u4e2a\u7528\u6765\u8bc6\u522b ECMAScript \u5e76\u4e14\u6309\u7167\u89c4\u5219\u7ed9\u51fa\u62a5\u544a\u7684\u4ee3\u7801\u68c0\u6d4b\u5de5\u5177\uff0c\u4f7f\u7528\u5b83\u53ef\u4ee5\u907f\u514d\u4f4e\u7ea7\u9519\u8bef\u548c [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":180,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[19],"_links":{"self":[{"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/posts\/590"}],"collection":[{"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=590"}],"version-history":[{"count":1,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/posts\/590\/revisions"}],"predecessor-version":[{"id":591,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/posts\/590\/revisions\/591"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/media\/180"}],"wp:attachment":[{"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=590"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=590"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=590"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}