[英]How to fix require.ensure error Webpack, Babel6, React?
I trying to use require.ensure to create a chunk for Facility.js 我试图使用require.ensure为Facility.js创建一个块
import React, { Component } from 'react';
import { render } from 'react-dom';
class Facility extends Component {
constructor(...args) {
super(...args);
this.state = {
....
};
}
render() {
return (
<div>
....
</div>
);
}
}
export default Facility;
//Tried module.exports = Facility;
NonPatientSer.js NonPatientSer.js
var Facility;
require.ensure([], function(require) { Facility = require('./Facility'); }, 'facility');
Dev I can see facility.bundle.js in my sources but the call for it returns undefined and this errors 开发人员,我可以在源代码中看到facility.bundle.js,但对其的调用返回未定义的错误
Warning: React.createElement: type should not be null, undefined, boolean, or number.
警告:React.createElement:type不能为null,undefined,boolean或number。 It should be a string (for DOM elements) or a ReactClass (for composite components).
它应该是一个字符串(对于DOM元素)或一个ReactClass(对于复合组件)。 Check the render method of
NonPatientSer
检查
NonPatientSer
的渲染方法
and 和
Uncaught Invariant Violation: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined.
未捕获的不变违反:元素类型无效:预期为字符串(对于内置组件)或类/函数(对于复合组件),但得到:未定义。 Check the render method of
NonPatientSer
.检查
NonPatientSer
的渲染方法。
Production (run build) 生产 (运行构建)
Not allowed to load local resource: file:///C:/Users/.../facility.bundle.js
不允许加载本地资源:file:/// C:/Users/.../facility.bundle.js
Webpack config Webpack配置
output: {
path: path.join(__dirname, 'dist'),
filename: 'bundle.js',
publicPath: __dirname + '/',
chunkFilename: '[name].bundle.js'
},
First, you need to fix publicPath property in your webpack.config. 首先,您需要在webpack.config中修复publicPath属性。 You should use:
您应该使用:
publicPath: '/dist/'
instead absolute path. 而是绝对路径。
At second, if you use es6 syntax for export module: 第二,如果对导出模块使用es6语法:
export default Facility;
you should write your import code like this: 您应该这样编写导入代码:
require.ensure([], function(require) {
Facility = require('./Facility').default;
ReactDOM.render(<Facility/>, document.getElementById('app'));
}, 'facility');
Or just to use commonjs syntax: 或者只是使用commonjs语法:
module.exports = Facility;
and then 接着
require.ensure([], function(require) {
Facility = require('./Facility');
ReactDOM.render(<Facility/>, document.getElementById('app'));
}, 'facility');
See also: http://www.2ality.com/2015/12/babel-commonjs.html 另请参阅: http : //www.2ality.com/2015/12/babel-commonjs.html
Update: You can set publicPath in your entry js file. 更新:您可以在条目js文件中设置publicPath。 For example:
例如:
entry.js entry.js
__webpack_public_path__ = '/publicPathToChunk/';
var chunk;
require.ensure([], function(require) {
chunk = require('./chunk');
}, 'chunk');
Also, you can use next trick: 另外,您可以使用下一个技巧:
var bundleSrc = document.querySelector('[src*="bundle"]').getAttribute("src");
__webpack_public_path__ = bundleSrc.substr(0, bundleSrc.lastIndexOf("/") + 1);
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