How to activate function when checkbox is checked?

Question

I want to activate this function,

$(document).keydown(function(e){
    if (e.which == 65){
        $('#test').click();
    }
});

when this checkbook is checked.

<input type="checkbox" id="keyboard">

Sorry if this question is already exist.

You can look at this http://stackoverflow.com/questions/6358673/javascript-checkbox-onchange and model your code like that. — Arup Rakshit, Feb 27 '16 at 18:06
Please explain in more detail what you are wanting to have happen — charlietfl, Feb 27 '16 at 18:08

score 5 · Answer 1 · answered Feb 27 '16 at 18:08

5

you can use this.

$("#keyboard").change(function() {
  if ($(this).is(":checked")){
    //your function goes here
  }
});

answered Feb 27 '16 at 18:08

htoniv

1

you need to detail your answer, in order to educate the OP. – ameenulla0007 Feb 27 '16 at 18:22

score 1 · Answer 2 · answered Feb 27 '16 at 18:10

Check is your checkbox checked inside that function. For example, one of way is to do it this way

$(document).keydown(function(e){
    if (e.which == 65 && $('#keyboard:checked').length > 0){
        $('#test').click();
    }
});

This statement

$('#keyboard:checked').length > 0

checks whether there is more than 0 elements with id keyboard that are checked. You can also check using == 1. Other way is

$('#keyboard').prop('checked') == true

this is written in different manner, but works all the same.

2 Answers2