JavaScript

A regular expression is an object that describes a character pattern. First of all, this article is not directly to tell you, what is the regular expression URL, and how to use this regular expression to parse a URL address, I believe that this

Take a look at this example: Copy Code code as follows: var a = ' global '; (function () { alert (a); var a = ' local '; })(); The first thing you see in this example is what does the output look like? ' Global '? or

When a JS object is generated: such as: function BB (a) {This.a= "KKK"} var b=new BB ();At this time B is the object has the BB attribute prototype to the prototype object;The prototype object has a constructor attribute pointing to the BB

There is no concept of namespaces in JavaScript, but to embody object-oriented thinking, There should be a namespace, just like the namespace in Package,.net in Java, The main function is to prevent class name conflicts, the same class name as long

Recently received a project, project requirements need to use JS Regular expression filter out page text field is worth double quotes, in fact, the solution is very simple, the following I write the code to share with you, have the same needs of

Like http://www.youku.com/v1.0.0326/v/swf/up.swf. This is a cool video upload selection, it is through the Flash method to achieve the display of non-video class files. Flash to this effect is generally as described here Copy Code code as

The first method: In the user registration page Some requirements are more stringent, need to verify the identity card JS is legitimate, through this function strictly this system software, thus filtering to many water passengers. Here's how to

The project needs to use the calendar,. NET calendar control is too heavy, had to write with JS, the core function of the calendar is DateAdd (), the writing process found in JS inside operation time than the imagination of tedious, not like

There are two special values in JavaScript: undefined and null, which need to be noticed when comparing them. The undefined value is obtained when reading an unassigned variable or attempting to read an attribute that is not in an object.

We know that after object-oriented development, "overnight", almost all languages can be object-based, JavaScript is also object-based language. The user's behavior in the browser is called "event", followed by a series of actions, such as the

Concept Appearance mode (façade mode) is a relatively simple and ubiquitous pattern. The appearance mode provides a high-level interface that makes it easier to invoke the client or subsystem. The appearance mode is not adapter mode, and adapter

The following sections are categorized as follows: The source of the 1.call/apply/bind method 2.function.prototype.call () 3.function.prototype.apply () 3.1: Find the maximum number in the array 3.2: Change the empty element of the array to

This article analyzes the SetAttribute compatibility usage in JavaScript. Share to everyone for your reference, specific as follows: 1: The general properties are recommended to use node. Xxxx.2: Custom properties recommend the use of

Date type The date type in ECMAScript is built on the Java.util.Date class in early java. This date type uses the number of milliseconds since UTC (International coordinated Time) to start at midnight (0 o'clock) of January 1, 1970 to save dates.

Definition and usage the eval () function computes a string and executes the JavaScript code in it. The syntax eval (string) argument describes string as required. The string to evaluate, which contains the JAVASCRIPT expression to evaluate or the

Copy Code code as follows: /***************************************************************************************************** Name Shopping Cart Version 1.1 Author Vanni (Fanlin) url:www.27sea.com qq:303590170 CreateDate 2005-05-31

ObjectiveThis article is my Learning JavaScript process in the collection and collation of some of the error-prone knowledge points, will be from the scope of variables, type comparison, this point, function parameters, closure problems and object

Easyui datebox time limit, datebox Start Time Limit End Time, datebox end date greater than the start date implementation code, easyuidatebox I. Html code Note that data-options = "editable: false" must be added, and the date cannot be modified

Vue2 scroll bar loads more data implementation code, vue2 scroll bar loads code Resolution: To judge the scroll bar to the bottom, three DOM attribute values are required, namely scrollTop, clientHeight, and scrollHeight. ScrollTop indicates the

Bootstrap side bar pagination and bootstrap side pagination , As the page slides down, the dot turns white after the specified page, you can also jump to a certain position by clicking the dot. These are four parts. This