Webpack 4通用库目标 [英] Webpack 4 universal library target
问题描述
根据 Webpack 4文档,如果我指定 libraryTarget:'umd',它将导致以下输出:
According to the Webpack 4 documentation, if I specify libraryTarget: 'umd' it should result in the following output:
(function webpackUniversalModuleDefinition(root, factory) {
if(typeof exports === 'object' && typeof module === 'object')
module.exports = factory();
else if(typeof define === 'function' && define.amd)
define([], factory);
else if(typeof exports === 'object')
exports["MyLibrary"] = factory();
else
root["MyLibrary"] = factory();
})(typeof self !== 'undefined' ? self : this, function() {
return _entry_return_;
});
但是,我得到的是:
(function webpackUniversalModuleDefinition(root, factory) {
if(typeof exports === 'object' && typeof module === 'object')
module.exports = factory();
else if(typeof define === 'function' && define.amd)
define("lib", [], factory);
else if(typeof exports === 'object')
exports["lib"] = factory();
else
root["lib"] = factory();
})(window, function() {
return
而不是这个
(typeof self!=='undefined'?self:this,function()
我得到了这个:
(窗口,function()
(显然)这会导致运行时错误<
This (obviously) causes runtime error window is undefined
when importing in node environment.
要明确:
在节点环境中导入时,code>窗口未定义。
我知道窗口
不存在应用程序。我的问题不是这个问题,而是 webpack 。
To be clear:
I know that window
doesn't exist in node applications. My question is not about this, but rather about webpack.
这是一个错误还是我错过了什么?
Is it a bug or am I missing something?
我的输出配置:
output: {
path: resolve(__dirname, 'umd'),
filename: 'lib.js',
libraryTarget: 'umd',
library: 'lib',
umdNamedDefine: true,
},
推荐答案
这将是错误在 Webpack 4 中。
Webpack 3 产生适当的捆绑包。
This would be a bug in Webpack 4.
Webpack 3 produces a proper bundle.
此问题应通过此功能,直到完成为止,建议的解决方法是使用 globalObject
:
This issue should be fixed with this feature, until it's done the suggested workaround is using globalObject
:
output: {
path: resolve(__dirname, 'umd'),
filename: 'lib.js',
libraryTarget: 'umd',
library: 'lib',
umdNamedDefine: true,
globalObject: `(typeof self !== 'undefined' ? self : this)`
},
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