JavaScript

One, two methods of array merging1, concat--Merge array, and do not go heavyvar arr1 = ["AB", "BC", "de", "FG"]; var arr2 = ["ml", "kg", "ww", "BC", "AM"];var arr3 = Arr1.concat (ARR2);Console.log (ARR3)2. Custom array merging and de-resetting

A detailed description of this in JavaScriptThe this in JavaScript is always confusing and should be one of JS's well known pits. Personally also think that JS in this is not a good design, due to this late binding characteristics, it can be a

Transferred from: http://www.cnblogs.com/dolphinX/archive/2012/10/09/2717119.htmlIn some DOM operation we often deal with the position of the element, the mouse interactive one often use of aspects, disappointing is that different browsers will have

First, need to know is:1, KeyDown ()The KeyDown event is triggered when the keyboard is pressed.2, KeyUp ()The KeyUp event is triggered when the key is released, which is the event you press the keyboard up3, KeyPress ()The KeyPress event is

Transferred from: http://www.cnblogs.com/silence516/archive/2009/09/03/delegateEvent.htmlIf you want to add a bit of JavaScript interactivity to your Web page, you may have heard of JavaScript's event delegation, and think it's one of those puzzling

JS get URL parameters and URL encoding, decodingThe complete URL consists of these parts: Scheme://host:port/path?query#fragment, the various parts are as follows:Window.location.href: The way to get the full URL:

What is a cookie? In short, a cookie is a piece of text that the Web server stores on our computer (typically less than 4KB in size) to identify and record the user's personal information. The HTTP protocol is a transport protocol that does not have

Introduced definition: The closure only has the right to access functions in the scope of another function.Simply put, when a function A is finished, the closure does not allow the GC (the JavaScript recycling mechanism) to reclaim the resources

Get text node:1). Step: Element node--Get child node of element node2). If the element node has only one child node of the text node,For example Beijing , which city do you like? You can get to the specified element node Elenode first,Then use the

1. To say that a value is converted to its corresponding Boolean type, you can call the Transform function Boolean ().var message= "Hello world! "; var messageasboolean=boolean (message);2. Floating point numberIf a floating-point value represents a

If is No Other wording:Equals"User.username eq \" a\ "">"user.username==\" a\ "">' user.username eq "a" '>Less than"user.age lt 0"> less than 0Or"Null==list2 or 0==list2.size"> is empty Iterator Select+iterator+enum

The array is as follows:var item=[{name:' Tom ', Age:+, child:[{ name:' Jerry ', age :50 , child:[{ name:' William ', age :' } ' }, { name: ' Jessi ', age :+ }]}];The output httml is as follows:1

Http://www.jb51.net/article/25027.htmhttp://blog.csdn.net/chunqiuwei/article/details/22092551Http://developer.51cto.com/art/200907/134913.htmSummarize:Special note: Only the constructor has the prototype property, and the instance of the constructor

First, define the functionIn JS, functions are also objects, can be assigned to variables, can be used as parameters, you can set properties, and call the method he owns. The ToString () method of the function returns the contents of his full

What do you think the result equals? is the output 1 2 1? Well, that's what I thought when I sent the test case to her, but after the test output ... The result of the operation is undefined 2 1. At that time, baffled, study + test, summarized as

An array is described as a linear set of stored elements that can be arbitrarily accessed by an index.Almost all programming languages have similar data structures, but the arrays in JavaScript are slightly different.arrays in JavaScript are a

1, Date.parse (): Receives a string parameter that represents a date, and then attempts to return the number of milliseconds of the corresponding date based on the string. such as "6/13/2015", "January 12,2014", "Tue May 2004 00:00:00 GMT-0700", "200

Move ZeroesGiven an array nums , write a function to move all's to the 0 end of it while maintaining the relative order of the No N-zero elements.For example, given nums = [0, 1, 0, 3, 12] , after calling your function, nums should is [1, 3, 12, 0, 0

Use Struts2 and jQuery EasyUI to implement a simple CRUD System (iii) -- ajax. Use json format for struts2 interaction. Following the previous article: Using Struts2 and jQuery EasyUI to implement a simple CRUD System (II) -- interaction between

JS achieves quick login portal and navigation module effects like Yahoo homepage, js login Portal This article describes how JS achieves quick logon entry and navigation module effects on the imitation Yahoo homepage. Share it with you for your