并把源码部分有用的代码提取出来
- nprogress.js
让文件支持模块化
;(function(root, factory) {
if (typeof define === 'function' && define.amd) {
define(factory);
} else if (typeof exports === 'object') {
module.exports = factory();
} else {
root.NProgress = factory(); //NProgress 在不支持模块支持情况下,全局抛出的变量名
//即最原始的js调用方式,使用NProgress.xx方法进行调用
}
})(this, function() { //this => windows
//核心代码写在这里
var NProgress;
return NProgress; //记得返回该对象
});// jq 插件支持模块化
(function (factory) {
if ( typeof define === 'function' && define.amd ) {
// AMD. Register as an anonymous module.
define(['jquery'], factory);
} else if (typeof exports === 'object') {
// Node/CommonJS style for Browserify
module.exports = factory;
} else {
// Browser globals
factory(jQuery);
}
}(function ($) {
//code
}); function hasClass(element, name) {
var list = typeof element == 'string' ? element : classList(element);
return list.indexOf(' ' + name + ' ') >= 0;
}
function addClass(element, name) {
var oldList = classList(element),
newList = oldList + name;
if (hasClass(oldList, name)) return;
// Trim the opening space.
element.className = newList.substring(1);
}
function classList(element) {
return (' ' + (element && element.className || '') + ' ').replace(/\s+/gi, ' ');
}
function removeClass(element, name) {
var oldList = classList(element),
newList;
if (!hasClass(element, name)) return;
// Replace the class name.
newList = oldList.replace(' ' + name + ' ', ' ');
// Trim the opening and closing spaces.
element.className = newList.substring(1, newList.length - 1);
}
function removeElement(element) {
element && element.parentNode && element.parentNode.removeChild(element);
}
获取元素样式
function getStyle(elem, property) {
// ie通过currentStyle来获取元素的样式，其他浏览器通过getComputedStyle来获取
return document.defaultView.getComputedStyle ? document.defaultView.getComputedStyle(elem, false)[property] : elem.currentStyle[property];
}
Javascript检测浏览器对WebP的支持,更多 2个让浏览器支持webp的js插件
//1
var hasWebP = false;
(function() {
var img = new Image();
img.onload = function() {
hasWebP = !!(img.height > 0 && img.width > 0);
//set cookie
};
img.onerror = function() {
hasWebP = false;
//set cookie
};
img.src = 'http://www.gstatic.com/webp/gallery/1.webp';
})();
//2
function hasWebP() {
var rv = $.Deferred();
var img = new Image();
img.onload = function() { rv.resolve(); };
img.onerror = function() { rv.reject(); };
img.src = 'http://www.gstatic.com/webp/gallery/1.webp';
return rv.promise();
}
//use
hasWebP().then(function() {
// ... code to take advantage of WebP ...
}, function() {
// ... code to deal with the lack of WebP ...
});
//[美团](http://zmx.im/blog?bname=webp)
function detectWebp () {
if (!window.localStorage || typeof localStorage !== 'object') return;
var name = 'webpa'; // webp available
if (!localStorage.getItem(name) || (localStorage.getItem(name) !== 'available' && localStorage.getItem(name) !== 'disable')) {
var img = document.createElement('img');
img.onload = function () {
try {
localStorage.setItem(name, 'available');
} catch (ex) {
}
};
img.onerror = function () {
try {
localStorage.setItem(name, 'disable');
} catch (ex) {
}
};
img.src = 'data:image/webp;base64,UklGRkoAAABXRUJQVlA4WAoAAAAQAAAAAAAAAAAAQUxQSAsAAAABBxAREYiI/gcAAABWUDggGAAAADABAJ0BKgEAAQABABwlpAADcAD+/gbQAA==';
}
}例子取消了重复发送的Ajax请求，这个在我们日常测试场景中也非常常见，例如疯狂点击会发送请求的按钮。
var currentRequests = {};
$.ajaxPrefilter(function( options, originalOptions, jqXHR ) {
if ( options.abortOnRetry ) {
if ( currentRequests[ options.url ] ) {
currentRequests[ options.url ].abort();
}
currentRequests[ options.url ] = jqXHR;
}
});
使用情况根据自身,或者能够些接口不支持跨域或者jsonp
$.ajaxPrefilter(function( options ) {
if ( options.crossDomain ) {
options.url = "http://mydomain.net/proxy/" + encodeURIComponent( options.url );
options.crossDomain = false;
}
});
//线上测试地址拦截转向本地数据测试
$.ajaxPrefilter( "json script", function( options, originalOptions, jqXHR ) {
// Modify options, control originalOptions, store jqXHR, etc
console.log(options,'///');
console.log(originalOptions,'///');
console.log(jqXHR,'///');
if(!!options.url.match('act=getServerList')){
options.url = 'http://192.168.202.188:9000/test/test.json';
}
});function errorHandler(args, callback) {
var description;
var code;
var message;
var unknown = "未知";
//容错处理
if (args && args.length >= 2) {
code = args[0].status || unknown;
description = args[1] || unknown;
} else {
code = unknown;
description = unknown;
}
//调用回调函数
if (callback) {
if(description == "timeout"){
message = "请求超时";
}else if(description == "parsererror"){
message = "数据解析失败";
}else if(description == "abort"){
message = "请求未发出";
}else{
message = "请求出错:" + description + " (错误码:" + code + ")";
}
callback(message);
}
}在实际接口中调用：
$.ajax({
...
}).fail(function(){
errorHandler(arguments, function(message){
alert(message);
});
});完整文章:http://get.ftqq.com/7552.get 腾讯视频真是地址获取
通过下面的方法，你可以在不带任何广告的观看腾讯所有视频
http://v.qq.com/cover/o/obr3rfx7xdatznl.html?vid=b0113x7xx0m视频播放页地址 取vid b0113x7xx0m
页面源码
$('[rel="canonical"]').attr('href')
<link rel="canonical" href="https://v.qq.com/x/cover/9703s6ewjb0l2ar/x0393r5fpe6.html">
x0393r5fpe6 => 视频id
加入后门接口
http://vv.video.qq.com/geturl?vid=b0113x7xx0m&otype=xml&platform=1&ran=0%2E9652906153351068h5rem适配
(function (doc, win) {
var docEl = doc.documentElement;
var resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize';
var recalc = function () {
var clientWidth = docEl.clientWidth;
if (!clientWidth) return;
if (clientWidth <= 750) {
docEl.style.fontSize = (clientWidth / 750 * 100).toFixed(1) + 'px';
}else{
docEl.style.fontSize = '100px';
}
};
recalc();
if (!doc.addEventListener) return;
win.addEventListener(resizeEvt, recalc, false);
})(document, window);