JavaScript

1. traverse all the controlsFunction findControlAll (){Var inputs = document. getElementsByTagName ("input ");For (j = 0; j If (inputs [j]. type = "text") // you can find all the controls whose types are text, or set them to the control type you

Set attributes-Attr ()The jQuery attr () method is also used to set/change attribute values. The following example shows how to change the value of the href attribute in the (SET) link: InstanceCopy codeThe Code is as follows:$ ("Button"). click

We have a module, for example, to select "region" and "Maintenance Agency", refresh the first DataGrid frame.Click the behavior data condition in the first result set to complete the search of the next frame. Now we have completed the corresponding

Copy codeThe Code is as follows: showModalDialog dialog box (subform) Text = "close"/> disable

ShowModalDialog:Mode window, a very special window. When it is opened, the activity of the parent window will stop. The parent window can be operated only when the child window of the current mode is closed. during webpage Ajax development, we

Before parsing, we must understand several concepts: what are the differences and contact points between arrays, associated arrays, and json? 1. Introduction to concepts1. Array Syntax:ECMAScript v3 specifies the syntax for the direct amount of

After a long time, the program uses the jquery load method for the request. It is strange that the second request cannot be sent. Baidu, but I know that load is requested in get mode, so IE It is cached. I searched for a lot of solutions on the

In the previous article, we talked about the recursive traversal algorithm of a binary tree (the improvement of the first root (First Order) traversal of a binary tree). This article mainly describes the non-recursive algorithm of a binary tree and

Copy codeThe Code is as follows:Var obj = document. getElementByIdx_x ("testSelect"); // locate idvar index = obj. selectedIndex; // select the index var text = obj. options [index]. text; // select the var value = obj. options [index]. value; //

Copy codeThe Code is as follows:

Copy codeThe Code is as follows:/*** Extended startWith Method* @ Param str* @ Return*/String. prototype. startWith = function (str ){If (str = null | str = "" | this. length = 0 | str. length> this. length)Return false;If (this. substr (0, str.

Copy codeThe Code is as follows:

Each javascript Object (except null) is associated with the prototype object, and each object inherits attributes from the prototype object. All objects created directly through objects have the same prototype Object, and can be referenced to the

Before using this code, download the jquery library.Copy codeThe Code is as follows:Var maskStackCount = 0; Function mask (method ){ // Here is the window you want to mask. Here I want to mask an iframe window. You can also use var winObj = $

As we all know, the execution environment of JavaScript is single-threaded. The so-called single-threaded task can only complete one task at a time, and the scheduling method of the task is queuing, which is the same as waiting at the gate of the

Javascript object-oriented is not a new transaction. Now it is simple to simulate OOP implementation inheritance. /*** Inherit */(function () {// create a member class function Person (name) {this. name = name;} // create a Teacher class function

Chapter 4 Styling and Animating 1. Use inline attributes to modify CSS We know that HTML reads various css values during onload. Can we change the css value in subsequent operations? The answer is yes! Otherwise, we won't see so many different

JavaScript itself does not determine whether a variable is a null value, because the variable may be of the string, object, number, boolean type, and other types, and the judgment method is also different. So I wrote a function in the article to

The toString () method provided by Node. js does not support gbk. Therefore, a third-party library needs to be loaded during Chinese conversion. We recommend the following two encoding conversion libraries: iconv-lite and encoding. What are iconv,

JavaScript module pattern is a common javascript encoding mode. This mode is easy to understand, but there are many advanced usage that have not been noticed yet. This article will review this design pattern and introduce some advanced usage, one of