JavaScript

JavaScript conversion of different data types

1. The important position of the functionThe function (functions) plays an important role in JavaScript for two reasons: They're a special kind of object. They provide scope It is said that functions are special objects in

This article is the first article in a series. Using JavaScript in a SharePoint solution (0) ?The first step in using JavaScript in a SharePoint application is to know how to put a well-written. js file on the page. Well, you might

Lifting object-oriented we can think of classes, objects, encapsulation, inheritance, polymorphism. In the JavaScript Advanced Program design (People's post and telecommunications press, Tianhua, Zhang Xin translation.) The English name is:

Note that the eval () function is a global object of JavaScript, and some people wonder, not a function, how is it a global object ... Hehe, because functions are objects in JavaScript, objects are defined by function.Definition and usageThe eval ()

Reference: http://www.w3school.com.cn/jsref/prop_node_firstchild.aspDefinition and usageThe FirstChild property returns the first child node of the specified node, to the Node object.Note: In HTML, the text itself is the parent node of the HTML

Reference: http://www.w3school.com.cn/jsref/met_doc_getelementsbytagname.aspHTML DOM Document ObjectDefinition and usageThe getElementsByTagName () method returns a collection of objects with the specified label

The difference between a data type and an object:The basic data types are not properties and methods, but objects have; just as the basic data types in Java are the same as reference types;Look at an example:var s= "xxxx"var xxxx=s.substring

1.2. Object does not support the "replace" property or methodSolution: Generally in IE, the implementation of JS will report such errors, the basic problem is that you refer to an object does not exist in the method, it may be that the method exists

1. What is the JavaScript parsing engine?In short, the JavaScript parsing engine is a program that can "read" JavaScript code and accurately give the result of the code running. such as Var a=1+2; for static languages (such as Java, C + +, c),

Today we share some knowledge of regular expressions and their application in JavaScript. The regular expression is simple but not simple, for example, my teacher told us about this thing in the beginning of the word twenty or thirty minutes to

JavaScript dependency management tool bowerJs dependency management tool bower Note: This article is from the author's new book "programmers in the cloud era". 2014.9.4 Similar to maven described earlier, it is only used to manage js packages.

Jquery implements animation Switching Based on the offset Value of the anchor. jqueryoffset I believe everyone has used the anchor! Is it uncomfortable to switch over after clicking? The following is a tips to achieve animation Switching Based on

Understanding requireJS-Implementing a simple module LoaderIn the previous article, we have emphasized more than once the importance of Modular programming and the problems that can be solved: ① solve the single file variable naming conflict problem

The jQuery floating navigation menu is suitable for shopping products. The content of a single page is large, and the page length is large, so it is convenient to quickly locate the page in different locations. As a result, floating menus are

Js method for obtaining parameters from pages. js method for obtaining page Parameters This article mainly introduces how to use window. location. search to obtain parameters from the page. function GetQueryString(name) { var reg = new RegExp("(^|&)

JavaScript Memory leakage prevention and memory management skills, javascript Memory Management This example describes how to use JavaScript to prevent memory leakage and manage memory. Share it with you for your reference. The specific method is as

Use js to submit a form to solve the problem that a page has multiple submit buttons. js form Using js to submit a form solves the problem of multiple submit buttons on a page, mainly to determine whether the text is submitted and then execute the

Front-end Engineering Optimization: javascript optimization SummaryI think optimizing javascript is a profound learning. Here, I can only stand on the shoulders of my predecessors. I want to give a simple understanding of it, but I also hope to give

Which level of CSS developer are you ?, Level css developers We are constantly learning and pursuing progress and improvement. To what extent have we learned? What level have we really understood CSS. Let's take a look.　　Level 0th: CSS? Isn't it a