| use std::str; | |
| fn main() { | |
| // -- FROM: vec of chars -- | |
| let src1: Vec<char> = vec!['j','{','"','i','m','m','y','"','}']; | |
| // to String | |
| let string1: String = src1.iter().collect::<String>(); | |
| // to str | |
| let str1: &str = &src1.iter().collect::<String>(); | |
| // to vec of byte |
| import React, { Component } from 'react'; | |
| import Button from './components/Button/Button'; | |
| import { useState } from 'react'; | |
| import { library } from '@fortawesome/fontawesome-svg-core'; | |
| import { | |
| faSpinner, | |
| faTrashAlt, | |
| faSave, | |
| } from '@fortawesome/free-solid-svg-icons'; |
| <!doctype html> | |
| <html> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>Robot</title> | |
| <style> | |
| #feedback{ | |
| display: flex; | |
| flex-direction: column; |
| @charset "UTF-8"; | |
| // 数组的两种定义 有逗号/无逗号 | |
| $font_family: 'PingFang SC', 'Helvetica Neue', Helvetica, Arial, sans-serif; | |
| $margin: 10px 5px 10px 5px; | |
| body { | |
| font-family: $font_family; | |
| margin: $margin; | |
| } |
| // 父组件 | |
| <template> | |
| <div class="home"> | |
| <Child | |
| staticTxt="向子组件传递静态文字" | |
| :propValue="propValue" | |
| @parentMethod2="parentMethod2" | |
| :parentMethod3="parentMethod3" | |
| /> | |
| </div> |
| 'use strict'; | |
| module.exports = { | |
| types: [ | |
| { | |
| value: 'WIP', | |
| name : '💪 WIP: Work in progress' | |
| }, | |
| { |
| Promise.prototype.finally = function (callback) { | |
| return this.then( | |
| value => this.constructor.resolve(callback()).then(() => value), | |
| reason => this.constructor.resolve(callback()).then(() => { throw reason }) | |
| ) | |
| } |
Collection of License badges for your Project's README file.
This list includes the most common open source and open data licenses.
Easily copy and paste the code under the badges into your Markdown files.
Translations: (No guarantee that the translations are up-to-date)
| function memorize(f) { | |
| var cache = {}; | |
| // 这个函数是什么意思呢 | |
| // 就是使用闭包的特性，保留了cache的值 | |
| // 这值将间接使用上次调用时产生的值。下面例子中会详细讲解。 | |
| return function() { | |
| console.log(cache); // 打印缓存值 | |
| // 这里的key就是一个签名档意思，也就是被缓存函数的参数 | |
| var key = Array.prototype.join.call(arguments, ','); | |
| // console.log(key) |
