using a javascript variable to refer to an element with id containing the variable

Question

HTML In my html I have an element with id ="check1"

<span id="check1"></span>

JAVASCRPIT I have a variable a='1', which is coming from somewhere else. Now, I want the inner HTML of span element to be "correct" with the help of reference to its id, and using 'a'.

var a = 1;
$.(#**checka**).innerHTML="correct"

How to write the id ??

document.getElementById("check" + a).innerHTML = "correct"; if using jquery: $("#check" + a).html("correct"); — Vahid Hallaji
– Vahid Hallaji, Commented Sep 28, 2013 at 8:53

Vahid Hallaji · Accepted Answer · 2013-09-28 08:56:00Z

2

JS:

document.getElementById("check" + a).innerHTML = "correct";

Jquery:

$("#check" + a).html("correct");

answered Sep 28, 2013 at 8:56

Vahid Hallaji

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Comments

Paul Rad · Accepted Answer · 2013-09-28 09:01:41Z

1

$('#check' + a).html('correct');

or

$('#check' + a)[0].innerHTML = ('correct');

or

document.getElementById('check' + a).innerHTML = ('correct');

edited Sep 28, 2013 at 9:01

answered Sep 28, 2013 at 8:55

Paul Rad

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Comments

Labib Ismaiel · Accepted Answer · 2013-09-28 08:57:48Z

0

first notice that innerHTML() is javascript and the jquery function is html() and always remember that you can use concatenation everywhere. with that said:

$('#check' + a).html('correct');

answered Sep 28, 2013 at 8:57

Labib Ismaiel

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