小编Dav*_*d C的帖子

I'll trying to use uglify with webpack but got this error:

Invalid configuration object. Webpack has been initialised using a configuration object that does not match the API schema.
 - configuration has an unknown property 'optimization'. These properties are valid:
   object { amd?, bail?, cache?, context?, dependencies?, devServer?, devtool?, entry, externals?, loader?, module?, name?, node?, output?, performance?, plugins?, profile?, recordsInputPath?, recordsOutputPath?, recordsPath?, resolve?, resolveLoader?, stats?, target?, watch?, watchOptions? }

I have

const UglifyJsPlugin = require('uglifyjs-webpack-plugin');

and

optimization: {
        minimizer: [new …

有没有办法在对象启动期间实现这一点？

//uuid() returns a new uuid
let Obj = {
  [uuid()]:{
    id: (get the ID that was just created)
  }
}

所以输出应该是这样的

Obj {
  5cb93583: {
  id: 5cb93583
  }
}

我有以下代码

//var r, t, y, f, g, h, c, v, b
    switch(event.key) {
        case 'r' : input.execute("game_stats_build " + r);
        break;
        case 't': input.execute("game_stats_build " + t);
        break;
        case 'y': input.execute("game_stats_build " + y);
        break;
        case 'f': input.execute("game_stats_build " + f);
        break;
        case 'g': input.execute("game_stats_build " + g);
        break;
        case 'h': input.execute("game_stats_build " + h);
        break;
        case 'v': input.execute("game_stats_build " + v);
        break;
        case 'b': input.execute("game_stats_build " + b);
        break;
      }

这是多余的,每次我做出改变,我都要做很多打字.我怎么能写得更好？

我有一个反应功能组件，我想动态决定是否要在其上使用 onClick 处理程序，如下所示：

const foo () => {
  let add_onClick = true;
  return (
    <div *(if add_onClick ==true then add an onClick event)*/>
  )
}

我想我可以将组件转换为一个类，为组件创建一个 Ref 然后在 componentDidMount 中添加一个 click eventListener，但是有没有更简单的方法来做到这一点？