Multiple methods for jquery to operate checked attributes and disabled attributes _ jquery

This article mainly introduces multiple methods for jquery to control the checked attribute and the disabled attribute. Here we only mention checked. In fact, the usage of disabled in jquery is exactly the same as that of checked, if you need a friend, you can refer to the two methods below. There is no difference, but there is less code...

The Code is as follows:

Jquery has three methods to determine checked:

The Code is as follows:

. Attr ('checked'): // check version 1.6 + and return: "checked" or "undefined"; 1.5-return: true or false
. Prop ('checked'): // 16 +: true/false
. Is (': checked'): // All Versions: true/false // do not forget the colon.

Several methods of jquery value assignment checked:

All jquery versions can be assigned the following values:

The Code is as follows:

$ ("# Cb1"). attr ("checked", "checked ");
$ ("# Cb1"). attr ("checked", true );

Four values of jquery1.6 +: prop:

The Code is as follows:

$ ("# Cb1"). prop ("checked", true); // you can leave it simple.
$ ("# Cb1"). prop ({checked: true}); // map key-Value Pair

$ ("# Cb1"). prop ("checked", function (){
Return true; // The function returns true or false.
});

$ ("# Cb1"). prop ("checked", "checked ");

Http://api.jquery.com/prop/ for more information

The Code is as follows:

Test