{"id":2064,"date":"2021-11-28T20:07:10","date_gmt":"2021-11-28T12:07:10","guid":{"rendered":"https:\/\/199604.com\/?p=2064"},"modified":"2021-11-28T20:07:10","modified_gmt":"2021-11-28T12:07:10","slug":"babel%e7%9a%84%e5%88%9d%e5%85%a5%e7%90%86%e8%a7%a3%e6%89%8b%e6%9c%ad","status":"publish","type":"post","link":"https:\/\/199604.com\/2064","title":{"rendered":"Babel\u7684\u521d\u5165\u7406\u89e3\u624b\u672d"},"content":{"rendered":"<h1>Babel\u7684\u521d\u5165\u7406\u89e3\u624b\u672d<\/h1>\n<h2>1.\u7b80\u4ecb<\/h2>\n<p>ES6\u7684\u67d0\u4e9b\u9ad8\u7ea7\u8bed\u6cd5\u5728\u6d4f\u89c8\u5668\u73af\u5883\u751a\u81f3\u662fNode.js\u73af\u5883\u4e2d\u65e0\u6cd5\u6267\u884c\u3002<\/p>\n<p>Babel\u662f\u4e00\u4e2a\u5e7f\u6cdb\u4f7f\u7528\u7684\u8f6c\u7801\u5668\uff0c\u53ef\u4ee5\u5c06ES6\u4ee3\u7801\u8f6c\u4e3aES5\u4ee3\u7801\uff0c\u4ece\u800c\u5728\u73b0\u6709\u73af\u5883\u6267\u884c\u6267\u884c\u3002<\/p>\n<h2>2.\u5b89\u88c5<\/h2>\n<p>Babel\u63d0\u4f9bbabel-cli\u5de5\u5177\uff0c\u7528\u4e8e\u547d\u4ee4\u884c\u8f6c\u7801\u3002\u5b83\u7684\u5b89\u88c5\u547d\u4ee4\u5982\u4e0b\uff1a<\/p>\n<pre><code class=\"language-shell \">npm install -g babel-cli\n#\u67e5\u770b\u662f\u5426\u5b89\u88c5\u6210\u529f\nbabel --version\n<\/code><\/pre>\n<h2>3.\u4f7f\u7528<\/h2>\n<p>1\u3001\u521b\u5efababel\u6587\u4ef6\u5939<\/p>\n<p>2\u3001\u521d\u59cb\u5316\u9879\u76ee<\/p>\n<pre><code class=\"\">npm init -y\n<\/code><\/pre>\n<p>3\u3001\u521b\u5efa\u6587\u4ef6 src\/index.js \uff0c\u4e0b\u9762\u662f\u4e00\u6bb5ES6\u4ee3\u7801\uff1a<\/p>\n<pre><code class=\"language-js \">\/\/es6\n\nconst name = 'glj'\nlet age = 25\nlet arr = [1,2,3,4,5,6,7]\nlet newArr = arr.map(a=&gt;a*2)\nconsole.log(newArr)\n\n\n<\/code><\/pre>\n<p>4\u3001\u914d\u7f6e <code>.babelrc<\/code><\/p>\n<blockquote><p>\n  Babel\u7684\u914d\u7f6e\u6587\u4ef6\u662f<code>.babelrc<\/code>\uff0c\u5b58\u653e\u5728\u9879\u76ee\u7684\u6839\u76ee\u5f55\u4e0b\uff0c\u8be5\u6587\u4ef6\u7528\u6765\u8bbe\u7f6e\u8f6c\u7801\u89c4\u5219\u548c\u63d2\u4ef6\uff0c\u57fa\u672c\u683c\u5f0f\u5982\u4e0b\u3002\n<\/p><\/blockquote>\n<pre><code class=\"language-json \">{\n  \"presets\": [],\n  \"plugins\": []\n}\n<\/code><\/pre>\n<p>presets\u5b57\u6bb5\u8bbe\u5b9a\u8f6c\u7801\u89c4\u5219\uff0c\u5c06es2015\u89c4\u5219\u52a0\u5165 .babelrc\uff1a<\/p>\n<pre><code class=\"language-json \">{\n  \"presets\": [\"es2015\"],\n  \"plugins\": []\n}\n<\/code><\/pre>\n<p>5\u3001\u5b89\u88c5\u8f6c\u7801\u5668\uff0c\u5728\u9879\u76ee\u4e2d\u5b89\u88c5<\/p>\n<pre><code class=\"language-shell \">npm install --save-dev babel-preset-es2015\n<\/code><\/pre>\n<p>6\u3001\u8f6c\u7801<\/p>\n<pre><code class=\"language-shell \">mkdir dist1\n\/\/--out-file \u6216 -o \u53c2\u6570\u6307\u5b9a\u8f93\u51fa\u6587\u4ef6\nbabel src\/index.js --out-file dist1\/index.js\n\/\/\u6216\u8005\nbabel src\/index.js -o dist1\/index.js\n\/\/\u6574\u4e2a\u76ee\u5f55\u8f6c\u7801\nmkdir dist2\n\/\/--out-dir \u6216 -d \u53c2\u6570\u6307\u5b9a\u8f93\u51fa\u76ee\u5f55\nbabel src --out-dir dist2\n\/\/\u6216\u8005\nbabel src -d dist2\n<\/code><\/pre>\n<h2>4.\u81ea\u5b9a\u4e49\u811a\u672c<\/h2>\n<p>1\u3001\u6539\u5199<code>package.json<\/code><\/p>\n<p>\u5728 <code>package.json<\/code>\u6587\u4ef6\u4e2d\u7684<code>scripts<\/code>\u6dfb\u52a0:<code>\"dev\": \"babel src -d dist\"<\/code><\/p>\n<pre><code class=\"language-json \">{\n  \"name\": \"babelpro\",\n  \"version\": \"1.0.0\",\n  \"description\": \"\",\n  \"main\": \"index.js\",\n  \"scripts\": {\n    \"test\": \"echo \\\"Error: no test specified\\\" &amp;&amp; exit 1\",\n    \"dev\": \"babel src -d dist\"\n  },\n  \"keywords\": [],\n  \"author\": \"\",\n  \"license\": \"ISC\",\n  \"devDependencies\": {\n    \"babel-preset-es2015\": \"^6.24.1\"\n  }\n}\n\n<\/code><\/pre>\n<p>2\u3001\u8f6c\u7801\u7684\u65f6\u5019\uff0c\u6267\u884c\u4e0b\u9762\u7684\u547d\u4ee4<\/p>\n<p><code>npm run dev<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Babel\u7684\u521d\u5165\u7406\u89e3\u624b\u672d 1.\u7b80\u4ecb ES6\u7684\u67d0\u4e9b\u9ad8\u7ea7\u8bed\u6cd5\u5728\u6d4f\u89c8\u5668\u73af\u5883\u751a\u81f3\u662fNode.js\u73af\u5883\u4e2d\u65e0\u6cd5\u6267\u884c\u3002 Ba [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[342],"tags":[343,238],"class_list":["post-2064","post","type-post","status-publish","format-standard","hentry","category-vue","tag-babel","tag-vue"],"_links":{"self":[{"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/posts\/2064","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/comments?post=2064"}],"version-history":[{"count":1,"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/posts\/2064\/revisions"}],"predecessor-version":[{"id":2065,"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/posts\/2064\/revisions\/2065"}],"wp:attachment":[{"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/media?parent=2064"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/categories?post=2064"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/tags?post=2064"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}