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gulp-babel-es6.html
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<h1 class="title">使用gulp+babel实时转es6</h1>
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<span class="avatar" style="background-image: url(https://s11.ax1x.com/2024/02/04/pFlmVit.jpg);"></span> <a class="name" href="javascript:;">江矿先森.</a>
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</section>
<article class="content"><h2>1.安装gulp</h2>
<ul>
<li>npm install gulp</li>
</ul>
<h2>2.全局安装Babel。</h2>
<ul>
<li>npm install -g babel-cli</li>
</ul>
<h2>3.Babel的配置文件是.babelrc</h2>
<p>windows下新建该文件会提示必须键入文件名，解决办法是文件名如下.babelrc.</p>
<h2>4.ES2015转码规则</h2>
<ul>
<li>npm install –save-dev babel-preset-es2015</li>
</ul>
<h2>5.将规则加入到.babelrc文件中</h2>
<pre><code class="language-json"> {
"presets": [
"es2015"
],
"plugins": []
}
</code></pre>
<h2>6.配置工具</h2>
<ul>
<li><p>6.1 安装gulp-babel
npm install –save-dev gulp-babel</p></li>
<li><p>6.2 配置gulpfile.js文件</p></li>
</ul>
<pre><code class="language-js">var gulp = require("gulp");
var babel = require("gulp-babel");
gulp.task("default", function () {
return gulp.src("src/a.js")
.pipe(babel())
.pipe(gulp.dest("lib"));
});
</code></pre>
<ul>
<li>6.3实时转码
安装gulp-watch
<ul>
<li>npm install –save-dev gulp-watch</li>
</ul></li>
</ul>
<h5>配置gulpfile文件</h5>
<pre><code class="language-js"> var gulp = require("gulp"),
babel = require("gulp-babel"),
watch = require("gulp-watch");
gulp.task("babeljs", function () {
return gulp.src("www/js/*.js")
.pipe(babel())
.pipe(gulp.dest("dist/js"));
});
gulp.task("watch",function(){
gulp.watch('www/js/*.js',['babeljs']);
})
gulp.task('default',['watch','babeljs']);
</code></pre>
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