Introduction to using wildcard characters in the selector of jquery

  This article mainly introduces the wildcard characters in the jquery selector, and the friends you need can refer to the following

1. Selector   (1) wildcard:  code as follows: $ ("input[id^= ' Code ']"); all input tags   $ ("input[id$= ' Code ')" starting with Code;// id attribute all input tags with code end   $ ("input[id*= ' Code '");//id property contains all input tags for code     (2) According to the index selection   code as follows: $ (" Tbody Tr:even "); Selects all TR tags   $ ("tbody tr:odd") indexed to even numbers; Select all TR tags     (3) with an odd index to obtain the number of input for the next level node in Jqueryobj     code as follows: Jqueryobj.children ("input"). Length;     (4) Get all <a> tags     code as follows: $ (". Main > a");    (5) Select next to label   & The code is as follows: Jqueryobj.next ("div");//Get jqueryobj tag immediately after a Div,nextall get all     2. Filter     Code is as follows://not   $ ("#code input:not ([id^= ' Code '])"//id for all input tags in the code tag that do not contain ID to start with code     3. The event   code is as follows:// Working with keyboard operations on text boxes   Jqueryobj.keyup (function (event) {  var keycode = event.which;//Gets the key value of the keyboard currently pressed, enter as 13 }     4. Tool function     code as follows: $ (' #someField '). Val ($ (' #someField '). Val ());//Eliminate spaces, Syntax: $.trim (value)