Wildcard characters in the selector of query [id^= ' code '] or [name^= ' code ']

1. Selector

(1) wildcard characters:

$ ("input[id^= ' Code ')");//id attribute all input tags starting with code

$ ("input[id$= ' Code ')");//id attribute all input tags ending with code

$ ("input[id*= ' Code ')");//id property contains all input tags for code

$ ("input[name^= ' Code ')");//name attribute all input tags starting with code

$ ("input[name$= ' Code ')");//name attribute all input tags ending with code

$ ("input[name*= ' Code ')");//name property contains all input tags for code

$ ("input[name*= ' Code ')"). each (Fuction () {

var sum=0;

if ($ (this). val () = "") {

Sum=parseint (SUM) +parseint ($ (this). Val ());

}

$ ("#"). Text (sum);

})

(2) Select by index

$ ("tbody Tr:even"); Select all TR labels indexed to even

$ ("tbody tr:odd"); Select all TR labels with an odd index

(3) Get the number of input of Jqueryobj next level node

Jqueryobj.children ("input"). Length;

(4) Get all tags under the child node of the tag class main

$ (". Main > a");

(5) Select next to label

Jqueryobj.next ("div");//Gets the jqueryobj tag immediately after the next div,nextall gets all

2. Filters

Not

$ ("#code input:not ([id^= ' code])");//id is a code tag that does not contain all input tags that start with the ID code

3. Events

Working with keyboard actions on a text box

Jqueryobj.keyup (function (event) {

var keycode = event.which;//Gets the key value of the currently pressed keyboard, the Enter is 13

}

4. Tool functions

$ (' #someField '). Val ($.trim ($ (' #someField '). Val ()));//Clear space, Syntax: $.trim (value)

Wildcard character in the selector of query [id^= ' code '] or [name^= ' code ']