jquery code to determine whether checkbox is selected_jquery

Copy code The code is as follows:

//Whether it is selected or not, verify that there is a selected return true, otherwise return false
function mycheckbox() {
var falg = 0;
$("input[name='soft[]']:checkbox").each(function () {
if ($( this).attr("checked")) {
falg = 1;
}
})
if (falg > 0)
return true;
else
return false;
}

This is a pretty good method, bookmarked.
The following function is a supplement to the above:

Copy code The code is as follows:

That's how it was originally written. How to write jq1.42.
Secondly, it is recommended that your logic processing
function mycheckbox() {
var falg = 0;
$("input[name='soft[]']:checkbox").each(function () {
if ($(this).attr("checked")) {
falg =1;
return false;
}
})
if (falg > ; 0)
return true;
else
return false;
}

The following is a simple judgment
jquery core judgment statement judgment statement

if($('input:checkbox').attr("checked")==true)

Everyone knows that in html, if a checkbox is checked, it is checked= "checked".
But if we use jquery alert($("#id").attr("checked")), it will prompt you that it is true instead of checked
So many friends judge if($("#id"). attr("checked")=="true") This is wrong. In fact, it should be if($("#id").attr("checked")==true)

The example includes Let’s take a look at a few functions.





Code

Copy code The code is as follows:

checkbox1

checkbox2

checkbox3

checkbox4

checkbox5

checkbox6

checkbox7

checkbox8

复主代码 代码如下:

/************단일 확인란에서 모두 선택*************************/
function clickCheckbox() {
if($("#checkPathAll").attr("checked"))
{
$("input[name='checkPath']").each( function() {
$(this).attr("checked", true)
});
}
else
{
$("input[name='checkPath']").each(function() {
$(this).attr("checked", false )
});
}
}