JavaScript

If your project is using the jQuery framework, you will choose jQuery. trim (string) to remove the null characters at the beginning and end of the string ). If jQuery is not used, how can we implement it easily. I have previously sent a small code

Self-written programs that use js to read configuration filesD: \ Useful Stuff \ Javascript \ mytest.txtThe file content is as follows:Copy codeThe Code is as follows:[Plugin_page_search]Wholeword = 0Matchcase = 1Hightlight = 1Total = 1[Data]Up =

This article mainly introduces the differences between the test, exec, and match methods in js regular expressions. If you need them, you can refer to them and hope to help you.The differences between the test, exec, and match methods in the js

As long as this article introduces jquery ajax cross-origin solution (json mode), you can refer to it for help.Cross-origin ajax requests are required in many projects recently developed by the company, for example, http: //. ****. com/index123.aspx,

Qq floating code (compatible with various browsers ). For more information, see.The Code is as follows:

Recently, I used jquery to operate checkbox in my work. I used the following method to select all and invert: Var ischecked = allCheckObj. is (': checked ');Ischecked? ChecksObj. attr ('checked', true): checksObj. attr ('checked', false ); There

Example:Copy codeThe Code is as follows: JS Verification Code

Example:Copy codeThe Code is as follows: provincial/municipal level-2 linkage menu province select a province city select city

you see me ~~~ Two Methods: Remove and hide // Create your pop-up layerVar dvMsg = document. createElement ("div ");StrHtml = " pop-up layer content "StrHtml + = " "DvMsg. innerHTML = strHtml;Document. body. appendChild (dvMsg );// Close the

Copy codeThe Code is as follows:If (reValue = undefined ){Alert ("undefined ");}The system found that the data could not be determined, and finally found the information to use the typeof method:If (typeof (reValue) = "undefined "){Alert ("undefined

After looking for a long time, I finally found a suitable one. I can change the width and number of images as needed. I can call the database code dynamically and cyclically.Copy codeThe Code is as follows: image scrolling

Dynamic Loading of js files is a new feature of ext4.x, which can effectively reduce the pressure on the browser and improve the rendering speed. Such as dynamic loading of custom components 1. create a js file for custom components under the

This article mainly introduces the usage and differences of delegate and on in jQuery in detail. If you need a friend, you can refer to it for help.In jQuery1.7,. delegate () has been replaced by. on. For earlier versions, it still uses the most

This article describes how to use Jquery to create a layer to display the title content and move it with the mouse. The specific implementation is as follows:The Code is as follows: // introduce Jquery // html code 1111111111111 222222222222

This article mainly introduces the JavaScript prototype chain example. If you need it, you can refer to it.The Code is as follows: thanks to simon for his suggestion! All instances do not search for their prototype when searching for the

When using the grid, the window is changed, but the grid cannot be adaptive. The following is a rough solution. For details, referRecently encountered problems. When using the grid, the window changed, but the grid could not be changed in an

This article provides you with a section of js Code added to your favorites and code that is useful for Jquery to change the transparency of objects. For more information, seeThe Code is as follows:/* Add to favorites JS */$ ("# addfavorite ").

Prototype defines the attributes and methods that can be accessed by all instances of a specific type. In many cases, you need to assign a new value to the attributes in the prototype. The following describes how to modify the prototype.In

This article mainly introduces the implementation case of jquery ajax partial refreshing data. If you need some help, please refer to it.The page code to be updated is as follows: Phase I Phase II Hello the operation Page code is

JQuery passed Chinese parameters garbled, because the default transfer method is not using UTF-8, all we can pass the parameter encoding, and then operate, the Code is as follows, the red code is the passed parameter, markedCopy codeThe Code is as