Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
727 views
in Technique[技术] by (71.8m points)

jquery - Loop through checkboxes and count each one checked or unchecked

I've run into a bit of an issue. Here's a brief explanation.

I have 12 check boxes on a standard form. What I need to do is loop through each of them and learn which ones are checked and which ones are unchecked.

Using this, I can then build a string which I then enter into a database field. Here is an example.

(Check1 - checked)
(Check2 - not checked)
(Check3 - checked)

1,0,1

So far, I've got this bit of code.

$('input[type=checkbox]').each(function () {
           if (this.checked) {
               console.log($(this).val()); 
           }
});

It works perfectly except that it only brings back the checked ones, not all.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

To build a result string exactly in the format you show, you can use this:

var sList = "";
$('input[type=checkbox]').each(function () {
    sList += "(" + $(this).val() + "-" + (this.checked ? "checked" : "not checked") + ")";
});
console.log (sList);

However, I would agree with @SLaks, I think you should re-consider the structure into which you will store this in your database.

EDIT: Sorry, I mis-read the output format you were looking for. Here is an update:

var sList = "";
$('input[type=checkbox]').each(function () {
    var sThisVal = (this.checked ? "1" : "0");
    sList += (sList=="" ? sThisVal : "," + sThisVal);
});
console.log (sList);

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...