June 2019 – 纽约网站设计博客

PHP traits

It may sound fancy, but it’s very simple and easy. trait sharable{ function foo(){ echo "foo\n"; } } class A{ use sharable; function bar(){ echo ... ...

How to use Namespace and Use in PHP > 5.3

namespace foo\bar\One; class A{ public function __construct(){ echo "AA\n"; } } namespace foo\baz\Two; class A{ public function __construct(){ echo "a ... ...

简单的 async , await例子

var count = 0; var tick = () => { count++; setTimeout(() => { process.stdout.write('.'); if(count < 100) tick(); },100); } tick();//Init var getApple ... ...

玩玩 ES6 的 Promise 功能

Promise 是一个 Object, 它有两种形式: 1. Promise.resolve() 这样直接可以用. 2.new Promise(function(resolved,rejected){ … resolved(param) … }) 一个 Object 的形式, ... ...

第一手尝试 React Hook 的 useReducer

第一手尝试 React Hook 的 useReducer: import React, {useState,useEffect,useReducer} from 'react'; import ReactDOM from 'react-dom'; let histories = []; const ... ...

第一手 Taste of React Hooks: useState & useEffect

需要 React 16.7.0 以上: import React, {useState,useEffect} from 'react'; import ReactDOM from 'react-dom'; let histories = []; const App = function(props) ... ...

User Redux on React without Using React-Redux 小例子

一个小例子 to play around React-Redux: import React from 'react'; import ReactDOM from 'react-dom'; import { createStore } from 'redux' let initialState = ... ...

另一个HIGHER ORDER COMPONENT的例子,含Anonymous Class

如下: import React from 'react'; import ReactDOM from 'react-dom'; const Btn = function(props){ return ( <button onClick={() => alert(props.messag ... ...

全纽约最简单的React Higher Order Component例子

代码: import React from 'react'; import ReactDOM from 'react-dom'; const X = (props) => { return <div>Colin</div>; } const Y = (props) =& ... ...

Higher Order Function in Javascript

It is a function to blueprint another functions: //Higher order function function multiplier(n){ return function(base){ return base*n; } } var doubler ... ...