Checkbox selection changes state and change and click events in jquery

jqueryThree ways to judge checked:
.attr('checked); //See 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//Don't forget the colon Oh

There are several ways to write jquery assignment checked:
All jquery versions can be assigned like this:

// $("#cb1").attr("checked","checked");
// $("#cb1").attr("checked",true);

jquery1.6+:prop 4 types of assignments:

// $("#cb1″).prop("checked",true);//很简单就不说了哦
// $("#cb1″).prop({checked:true}); //
map
键值对
// $("#cb1″).prop("checked",function(){
return
 true;//
函数
返回true或false
});

//Remember there is this one: $("#cb1″).prop("checked","checked");

checkbox click and changeEvent

Method 1:

$("#ischange").change(function() { 
alert("checked"); 
});

Method 2:

$(function(){ 
if ($.browser.msie) { 
$('input:checkbox').click(function () { 
this.blur(); 
this.focus(); 
}); 
};

Method 3:

$("#ischange").change(function() { 
alert("checked"); 
}); 
});

Method 4:

$(function () {if ($.browser.msie) {$('input:checkbox').click(function () { this.blur(); this.focus(); }); }});

Method 5:

$(
document
).ready(function(){ 
$("testCheckbox").change(function() { 
alert("Option changed!"); 
}); 
});

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