JavaScript

Let's briefly introduce the basics: First, window.open () Support environment: java1.0+/j1.0+/nav2+/ie3+/opera3+ Second, the basic grammar: window.open (Pageurl,name,parameters) which Pageurl as a child window path Name is a child window

So the basic things should not be recorded, but, restudying ~ first from the data type JS Six data types: number, String, object, Boolean, null, undefined String: Single or double quotation marks, such as "string" Number: What integer AH floating

Httml Code: Copy Code code as follows: untitled document JS Code: Copy Code code as follows:

There are three methods of obtaining elements in javascript: 1, getElementById () method: Get the HTML element by ID. 2, Getelementsbyname () method: to get the element by name, is an array. 3, getElementsByTagName () method: The HTML tag to get

But parseint ("08", 10) can return 8. To find out the difference between the two, Refer to the difference written by others: Parseint&number parseint Parses a string argument and returns an integer of the specified radix or base. Core

These ancient browsers only support a method of registering event handlers, a method that was invented by Netscape. Because Netscape is preemptive, if Microsoft wants to be a browser that supports JavaScript events, it has to follow Netscape, so

The JavaScript array is essentially an object that converts the subscript of an array into a string and uses it as a property, so it is significantly slower than a real array, but it can be used more easily. Change oneself

three ways to affirm functions (declaring a function) Method One: function functionname ([parameters]) {functionbody}; Example D1 Copy Code code as follows: function Add (A, B) { return a+b; } Alert (Add (1,2)); Produces 3

Sometimes there may be such a demand that I use in the background: Copy Code code as follows: Httputility.urlencode (str, System.Text.Encoding.UTF8); The URL is encoded, the front desk JS need to use this content, this time

Normally, window.onload is sufficient, and if you want to load multiple events, we can do the following: Copy Code code as follows: Window.onload = function () { Func1 (); Func2 (); Func3 (); More load events ....... ...... }

If you don't know why, don't worry too much, study CSS rules and view this article: use CSS to fix everything: 20 + common bugs and fixes. If this is not the case, you can fix it with the 12 JavaScript solutions listed below, so that your Web page

Javascript does not have private, public access to the keyword set, but can be a certain skill to simulate the same results. First let's look at the following line of code: var i = (1, 2, 3, 4, 5); The final result of the variable i is 5. This is

JavaScript is indispensable to WEB development and design, whether it is a simple Web page or a professional site, and whether you are a master or rookie, now the JavaScript library is more and more powerful, can do many complex work, but at the

about what is anonymous function, and its advantages in this article is not delve into, first throw a common anonymous function: (function () {alert (' Yo ')}) () Many students know how to use this anonymous function, but may not understand why it

In JavaScript, arrays are not stored directly as cookies (PHP can), and that is to dump the array into a string, and then save it in a cookie, and we can use either ToString () or join directly on the simple one-dimensional array: The ToString

When we transmit parameters, we often encounter parameters that send some of the same attributes to the background, and the best option is to use arrays. When we transfer to the background, we simply define and use the array in JavaScript and pass

Believe that every developer knows the importance of caching. There is a cached background (Memcached,xcache, etc.) from beginning to end. ) to reduce the pressure on db. In the Content distribution network (CDN) cache, you want your browser to

The following excerpt the source code, in-depth analysis of his design to achieve the idea: Copy Code code as follows: function Format (string) { var args = arguments; var pattern = new RegExp ("% ([1-" + Arguments.length + "])",

Someone asked a JS question: Copy Code code as follows: var i = 0.07; var r = i*100; Alert (R); The result is 7.0000000000000001? Check the data, in fact, we know that in Javsscript, variables are stored without

First introduce JavaScript API files This API provides a total of 6 interfaces, Geoip_country_code () {Country Code},geoip_country_ name () {Country name},geoip_city () {city name},geoip_region () {Region code}, Geoip_latitude ()