callback call

Jquery is so popular that it must be extraordinary. Learning through open source code is a good learning method! The following is my simulated method. I try to simplify it as much as possible. Define Object C (similar to jquery's $ method) -- this

Copy codeThe Code is as follows: // args is for internal usage only Each: function (object, callback, args ){ Var name, I = 0, Length = object. length, IsObj = length = undefined | jQuery. isFunction (object ); If (args ){ If (isObj ){ For (name in

Copy codeThe Code is as follows: (function (win ){ Var toString = Object. prototype. toString; Var hasOwn = Object. prototype. hasOwnProperty; Var class2type = {}; Class2type ["[object Boolean]"] = "boolean "; Class2type ["[object Number]"] =

Remaining Time: 1 hour: 40 minutes: 30 seconds Copy codeThe Code is as follows: 1 /* * Countdown plug-in, mainly used for time-limited purchase * By wayshan Version 1.0 * Usage: * $ (Function (){ * $ ("# ElementId"). countdown ({ * Edate: "15:14:23"

This article mainly introduces jQuery source code analysis. fn. each And jQuery. the usage of each is analyzed in detail, which is very useful. If you need it, you can refer to the examples in this article to describe jQuery in jQuery source code

[Author]: KwuFast Echarts-based Big Data visualization, Echarts pure JS Implementation of the charting tools, the steps for rapid development are as follows:1, the introduction of Echarts-dependent JS Library2, set the display div3, the plot JSvar

Basic concepts of lazy loading and pre-loading. Lazy loading is also called delayed loading: the previous article introduced the delay loading of JS images. Some images are loaded only when the image loading is delayed or meets certain conditions.

[JS] [easyui] Simple Analysis of jQuery EasyUI Datagrid VirtualScrollViewZookeeper We all know that the advantages of the EasyUI Datagrid component in loading large data volumes are not very obvious. Compared with other frameworks, if the data

Js checks whether the image is loaded and implements pre-download of the image Create an Image object to pre-download the Image. If the Image already exists in the browser cache, directly call the callback function and use the onload event to

Remaining Time: 1 hour: 40 minutes: 30 secondsCopy codeThe Code is as follows:1 /** Countdown plug-in, mainly used for time-limited purchase* By wayshan Version 1.0* Usage:* $ (Function (){* $ ("# ElementId"). countdown ({* Edate: "15:14:23"*});*})*/

Error: function (msg) {// declaration errorThrow msg;},ParseJSON: function (data) {// convert a string to json formatIf (typeof data! = "String" |! Data) {// first determine whether the string existsReturn null;}Data = jQuery. trim (data); // remove

Jquery is so popular that it must be extraordinary. Learning through open source code is a good learning method!The following is my simulated method. I try to simplify it as much as possible.Define Object C (similar to jquery's $ method) -- this is

Each introductionThe each method of JQuery, as a general-purpose traversal method, can be used to traverse objects and arrays.The syntax is:Jquery. Each (object, [callback])The callback function has two parameters: the first is the index of the

JSONP explanationBefore explaining JSONP, we need to understand the concept of "homologous strategy", which is helpful for understanding cross-domain. For security reasons, browsers exist in the same origin policy mechanism, and the same-origin

In the process of front-end page development, you often use AJAX requests to submit form data asynchronously, or to refresh the page asynchronously.In general, it is very convenient to use $.ajax,$.post,$.getjson in jquery, but sometimes it is not a

Https://www.cnblogs.com/guoyansi19900907/p/5000267.html$.ajax () Summary of the deferred initiated by posted on2015-11-27 12:09 Dr. Sisi reading (3685) Comments (0) Edit Collection The traditional Ajax notation:$.ajax ({ URL: "1.json", type: "

JQuery source code analysis-03 construct a jQuery object-tool function. For more information, see. Author: nuysoft/high cloud QQ: 47214707 EMail: nuysoft@gmail.com Disclaimer: This article is an original article. If you need to reprint it, please

Javascript allows you to dynamically import js, css, and other static resource files. This document describes how to dynamically import static resource files such as js and css using javascript. Share it with you for your reference. The specific

This paper mainly introduces the knowledge of the data transfer of the cookies in the cross-domain data interaction between ASP and Ajax Webapi. Has a good reference value. Let's take a look at the little series. Objective Recently, the company's

This article mainly introduces the JavaScript series (31): detailed explanation of the proxy mode of the design mode. The proxy mode allows the proxy object to control the reference of a specific object. The proxy can be almost any object: file,