Recent questions tagged es6

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es6 promise - Axios get access to response header fields

I'm building a frontend app with React and Redux and I'm using axios to perform my requests. I would like ... can see all the other fields are present. Bests. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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es6 modules - How can I use an ES6 import in Node.js?

This question already has answers here: Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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es6 还原 es5

const compose = f => g => x => f(g(x)); const f = compose (x => x * 4) (x => x + 3); f(2) // 20 求一个化简后的compose!!!!!!.......还有为什么f(2)等于8...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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es6 书上看见的不太懂问问大神

这是我在书上看见的真心没见过这么写的？我是说为什么函数那边必须写 “*” 还有就是那个 yield 是干什么的？...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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es6 let关键词在ios9.3.5的微信浏览器中不被支持？

for (let i = 0; i < 10; i++) { console.log(i); } 这样的情况，ios10.2的微信6.5.3版本下正常执行，在ios9.3.5的微信浏览器下报错了，我真是想不通啊，微信版本也是最高版本，6.5.3...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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es6 require参数问题

没怎么找到es6 require的具体用法，大多是简单介绍用于加载模块，例如 const es_namespace = require('./es'); 但是我在其他地方看到这样用resolve => require(['../pages/login/'], resolve)，这样的require函数代表啥意思啊？有官方文档出处吗？或者详细介绍？...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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es6 对象语法

这句话是什么意思 var { auth = true } = meta 感觉{}是一个对象，但是里面的格式又不太对不是应该是{ auth: true }吗，然后又赋值meta的值？不懂是什么意思...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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es6 或 react 语法问题

export class Form extends Component { constructor(props) { super(props); } // 正则合集 rule() { required: function(val) { return /^ ... /^S+$/gi.test(val); }, this.rule().alpha()...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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es6 modules - Deeply nested export in TypeScript

Is there a way to export nested types in typescript without using submodules (e.g. import "my-package/a")? Like this: import { A, X } from ... (y : X.Y) {} function z(z : X.Y.Z) {}...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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es6 map(). reduce()连用，求教执行顺序

比如一个数组a a. map(item=>...). ruduce() 是执行完map 里面然后返回值再执行reduce，还是依次map再reduce？...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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es6 模块按需导入 tree-shaking

我在项目的plugins目录下构建了一些插件目录 a b c ... 例如 plugins/a/index.js export default a plugins/index.js export { default as a } from '@plugins/ ... c 请问在 webpack 中如何将 b c shake掉或者有没有其他做法呢？谢谢 ...