A mercer08

前端面试笔试题说明

First download the new old icon: https://cl.ly/mzTc (based on this)

You can also use the icon you want, but you need to convert it to .icns. You can use this service to convert PNG to ICNS.

Go to Applications and find VSCode, right click there and choose Get Info. Drag 'n drop the new icon.

	<!DOCTYPE html>
	<html lang="zh-cn">
	<head>
	<meta charset="UTF-8" />
	<meta http-equiv="X-UA-Compatible" content="IE=edge" />
	<meta name="viewport" content="width=device-width, initial-scale=1.0" />
	<title>Axios 请求重试示例（适配器）</title>
	<script src="https://cdn.bootcdn.net/ajax/libs/axios/0.21.1/axios.min.js"></script>
	</head>
	<body>

	const Cache = {
	setCache (key, val) {
	if (!this.isIncognitoMode()) {
	if (val === null) {
	localStorage.removeItem(key)
	} else {
	localStorage.setItem(key, JSON.stringify(val))
	}
	} else {
	// 兼容隐身模式

	<!DOCTYPE html>
	<html>
	<head>
	<title>Test 2 way data binding</title>
	</head>
	<body>
	<div id="app">{{ abc }} - {{ def }} = {{ abc-def }} </div>
	<button id='add'>add</button>
	<button id='double'>double</button>
	<script src='main.js'></script>


	/**
	* 遍历文件夹目录
	* @param {[type]} dir [description]
	* @param {Function} callback [description]
	* @return {[type]} [description]
	*/
	function travel(dir, callback) {
	var fileList = [],
	folderList = [];

	// Bonfire: Meet Bonfire
	// Author: @2lei
	// Challenge: http://www.freecodecamp.com/challenges/bonfire-meet-bonfire#
	// Learn to Code at Free Code Camp (www.freecodecamp.com)

	function meetBonfire(argument) {
	// Good luck!
	console.log("you can read this function's argument in the developer tools", argument);

	return true;

	来源:http://www.cnblogs.com/devinhua/articles/1726292.html


	1、简单的正则表达式：



	（1）preg_match("/^(\d{18,18}\|\d{15,15}\|\d{17,17}x)$/",$id_card)
	（2）preg_match("/^(\d{6})(18\|19\|20)?(\d{2})([01]\d)([0123]\d)(\d{3}) (\d\|X)?$/",$id_card)
	（3）preg_match("/(^\d{15}$/)\|(\d{17}(?:\d\|x\|X)$/),$id_card)

	var Cookie = {
	get: function (name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
	var c = ca[i];
	while (c.charAt(0)==' ') c = c.substring(1,c.length);
	if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;