JavaScript

Copy codeThe Code is as follows:// For example, if the 7*0.8 JavaScript code is calculated as follows: 5.6000000000000005 // Addition function, used to obtain accurate addition results// Note: The addition result of javascript has an error, which is

Copy codeThe Code is as follows:1. hierarchical selector: gets elements through the hierarchical relationship between DOM elements. Its main hierarchical relationships include descendant, parent and child, adjacent, and sibling relationships.

Copy codeThe Code is as follows:1. Simple filter selector: matches elements according to certain filtering rules and starts with a colon (:) in writing. Simple filter selector is the most widely used filter selector.JQuery selector detailsBased on

To convert a string to an xml object on the java end, use incluenthelper. parseText (xmlReturn). getRootElement ();In js, there are also ways to convert strings into xml objects. You can use the following functions:The following is a reference

In the background management of a blog, you can add an address for a category, but it is difficult to add an onclick event. If you want to pass the current object to a function, you can write the URL as "Javascript: shoControlSidebar (this)".

Copy codeThe Code is as follows: User name: password: Email: change to $ ("# Submit"). click (function (){$ ("Form"). submit ();}); The above Code cannot submit the form when you click the register buttonCause Additional Notes:Forms and

Copy codeThe Code is as follows:

Copy codeThe Code is as follows:

I have heard that Firefox's JS engine supports the for each in syntax, such as the following code:Copy codeThe Code is as follows:Var arr = [10, 20, 30, 40, 50];For each (var k in arr)Console. log (k );You can directly traverse the content of the

Copy codeThe Code is as follows: Copy codeThe Code is as follows:Function mb_strlen (str ){Var len = 0;For (var I = 0; I Len ++ = str. charCodeAt (I) 255? (Charset = 'utf-8 '? 3: 2): 1;}Return len;} [Ctrl + A select all Note: If you need to

Sublime TextIt is a very good cross-platform editor with beautiful user interfaces and powerful functions, such as code thumbnails, multiple choices, and quick commands. You can also customize Key Binding, menus, and toolbar. Sublime Text provides

Copy codeThe Code is as follows:

1. Open the link on the entire webpage in a new window: add the link to the head2. Open all links in a DIV in a new window:Add in bodyCopy codeThe Code is as follows: Added whether or not to open the current windowCopy codeThe Code is as follows://

Method 1:Copy codeThe Code is as follows:Html> Method 2:Copy codeThe Code is as follows: thunder download

JQuery provides two functions: 1. $. map (array, callback (element, index )); For each element in the array, call the callback () function and return a new array. The original array remains unchanged. For example: $ (Function (){Var arrInt = [1, 3, 5

I. Element nodesCopy codeThe Code is as follows:// Test the element node, output node name, node type, and node ValueVar liElements = document. getElementsByTagName ("li ");For (var I = 0; I Alert (liElements [I]. nodeName );Alert (liElements [I].

Our computer screen size is fixed, so how can we put more content in a limited space?We should give users enough options to hide some content when they want to see it quickly. So we have the question.In fact, this question is very simple. We share

Let's use examples to illustrate several methods of setTimeout in jQuery. First, we have prepared the DIV and public functions used for testing: Copy codeThe Code is as follows: The basic usage of setTimeout in the original javascript is like

Today, let's talk about the basic use of this datagrid framework. This framework has always been a headache for everyone. Especially for the splicing of Json data, the background front-end is very important. Use this framework, the most important

It took one night to solve a seemingly easy problem. In this task, you need to obtain an ID value in a column. This problem does not exist if you use the common method of passing JS values. However, all jquery plug-ins are used this time, including