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elrrrrrrr / Hoisting

Last active August 29, 2015 14:05

javascript

elrrrrrrr / 处理条件判断

Created August 10, 2014 05:04

Jade gist in huiyin

	//jade 通过缩进行条件判断，所以需要使用三元表达式进行简单的class添加

	ul.ul-con(class=isAdd?'add':'disadd')

elrrrrrrr / js in brower

Created August 12, 2014 13:26

localstroge hotfix by sofish

	// 解决隐私模式下 localStorage 不正常问题
	;(function() {
	var KEY = '_localStorage_'
	, VALUE = 'test';

	// 检测是否正常
	try {
	localStorage.setItem(KEY, VALUE);
	} catch(e) {
	var noop = function() {};

elrrrrrrr / 加载

Created August 15, 2014 06:15

加载node模块

	var mod = require('module');

	module.exports = function module_exist(name){
	/**
	* This is UGLY but since we're not allowed to require 'native_module'
	* this is the only way to test if a native module (or non-native module) exist.
	*/
	try{
	require(name);
	} catch(err){

elrrrrrrr / hover 菜单

Created August 17, 2014 08:51

HTML 组件

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="utf-8">
	<title>Show Hide Dropdown Using CSS</title>
	<style type="text/css">
	ul{
	padding: 0;
	list-style: none;
	}

elrrrrrrr / JS Event

Created August 18, 2014 07:20

添加事件监听

	function addListener(target, type, handler) {
	if (target.addEventListener) {
	target.addEventListener(type, handler, false)
	} else if (target.attachEvent) {
	target.attachEvent("on" + type , handler);
	} else {
	target["on" + type] = handler;
	}
	}

elrrrrrrr / async load template

Created August 18, 2014 07:30

异步加载模版

	function loadDialog(name, oncomplete) {
	var xhr = new XMLHttpRequest();
	xhr.open("get", "/js/dialog/" + name, true);

	xhr.onreadystatechange = function(){
	if (xhr.readyState == 4 && xhr.status == 200){

	var div = document.getElementById("dlg-holder");
	div.innerHTML = xhr.responseText;
	oncomplete();

elrrrrrrr / get the type of reference type

Last active August 29, 2015 14:05

判断JS引用对象类型

	function getType(foo, type) {
	return Object.prototype.toString.call(foo) == "[Object " + type + "]"
	}

	//ES5 Array 有isArray方法

	function isArray(value) {
	if (typeof Array.isArray === "function") {
	return Arrary.isArray(value);
	} else {

elrrrrrrr / hasProperty

Created August 18, 2014 08:44

js对象属性检测

	// 好的写法
	if ('count' in object)

	//判断DOM对象 IE8之前 DOM对象不从Object对象继承需要判断

	//判断实例需要使用hasOwnProperty

	if (object.hasOwnProperty("related")) {
	//非dom对象
	}

elrrrrrrr / MyError

Created August 18, 2014 08:59

自定义错误类型

	function MyError(code, message) {
	this.code = code;
	this.message = message;
	}

	MyError.prototype = new Error();