JavaScript

The text and values selected by the select statement are useful in many places and there are many implementation methods, in the following example, we will introduce in detail how jquery obtains the select statement: Obtain the selected text in the

This article mainly introduces Effect: the figure is moved once every five seconds (in fact, a new figure is drawn) to display the monitored cpu information. The pastCpuInfomation function is used to display a line chart. The updateCpuPic function

The reverse method reverses the position of elements in an Array object. The sort method returns an Array object whose elements have been sorted. Next we will introduce the reverse method first. The reverse method reverses the element positions in

In the desktop demo in ExtJS, the default icons are arranged without line breaks. The following code is used to solve this problem. If you need to know about the desktop demo in ExtJS, by default, icons are arranged without line breaks, which causes

GUID (globally unified identifier) refers to the number generated on a machine. The following describes how to generate a GUID using native JavaScript. Do not miss the GUID (globally unified identifier) it refers to the number generated on a machine,

Jsdelete can delete object attributes and variables. The following are some examples. If you are interested, you can see 1. Delete object attributes. Function fun () {this. name = 'mm';} var obj = new fun (); console. log (obj. name); //

To delete an HTML element, you can use remove and empty. The following describes how to use these two methods to delete or clear an HTML element. Remove ()-delete a specified Element (including its child elements)Empty ()-clears child elements of a

This article mainly introduces the alternative usage of Javascript & amp; and |. If you need it, you can refer to it and have no idea about writing articles recently, I feel that there are always endless tasks. However, I started to study Titanium

Because the Node. js version of the Fl engine is considered in the future, the character processing performance of Node. js and PHP is compared. I found that Node. js really dumped several streets in PHP and tested Python again, which is slower than

This component allows you to draw arrows Based on the coordinate at the start and end of arrows. Currently, you can set the arrow shape (size and angle) for the widget ). Example: Put the following code directly: Arrow. js /*** Implement the

To determine whether an attribute is defined in the Object itself rather than inheriting from the prototype chain, we need to use the hasOwnProperty method inherited from Object. prototype. The hasOwnProperty method is the only method in Javascript

Adding Elements to arrays in javascript is a very simple problem. javascript itself provides a large number of such functions. We can use the built-in functions of js to quickly add elements to arrays, in this article, we will summarize the method

This article mainly introduces the jQuery queue operation method example and summarizes a simple and elegant queue control method. If you need a queue control method, refer to the jQuery core, this set of methods is composed of three methods: queue (

The previous article describes how to use the concat and uglify commands to merge and compress JavaScript resources. This article describes how to merge and compress css resources. Perform the following steps: 1. Create a project Bejs2. Create a

Click a button to achieve full screen press F11. In HTML5, W3C has developed an API for full screen to achieve full screen effects. In the project, the full screen window of the background browser is required, that is, we click a button to achieve

For the question of jquery performance optimization, I am sure you will understand it. The following is a reference for jquery performance optimization. For the question of jquery performance optimization, I am sure you will understand it. The

Understanding the function calling process helps you to learn and analyze JavaScript code in depth. This is the third article in The JavaScript advanced series. It mainly introduces four usage forms of functions in JavaScript. functions are

When you select an emoticon to insert a text field, a string similar to [Haha] is displayed. Below is a method to convert an emoticon string to an image emoticon, which is common in Weibo or forum, when you select an emoticon to insert a text field,

When talking about the waterfall flow layout, you must be familiar with it. Actually, what? That's how it works. Here is a small example to share with you. The Code is as follows: Waterfall stream layout code

Presumably everyone is familiar with jQuery, the most popular javascript class library, and as long as it is a front-end developer, it must have been more or less used or used. In this article, based on some materials and practical usage efficiency,