Programmatically change the src of an img tag

Question

How can I change the src attribute of an img tag using javascript?

<img src="../template/edit.png" name="edit-save" alt="Edit" />

at first I have a default src which is "../template/edit.png" and I wanted to change it with "../template/save.png" onclick.

UPDATED: here's my html onclick:

<a href="#" onclick="edit()"><img src="../template/edit.png" id="edit-save" alt="Edit" /></a>

and my JS

function edit()
{   
    var inputs = document.myform;
    for(var i = 0; i < inputs.length; i++) {
        inputs[i].disabled = false;
    }
}

I've tried inserting this inside the edit(), it works but need to click the image twice

var edit_save = document.getElementById("edit-save");
    edit_save.onclick = function(){
       this.src = "../template/save.png";
    }

Matthias · Answer 1 · 2013-01-24T07:15:17.497

412

Give your img tag an id, then you can

document.getElementById("imageid").src="../template/save.png";

edited Jan 24 '13 at 07:15

answered Jul 30 '12 at 13:18

Matthias

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For simple things like setting the value of an input or changing an image src (**especial** when you're using elements that have IDs), you really should try to avoid jQuery, since the call is so much slower than the pure JS call – Brian Leishman Apr 08 '15 at 13:36
2

@william44isme and our page will be loaded slower than before. i think the jQuery is useful just for websites that uses a same code, very more. for example if we use the above code more than 30 or 50 times. so it's necessary to use jQuery – Mahdi Jazini Nov 30 '16 at 17:44

score 82 · Answer 2 · edited Mar 25 '16 at 15:56

82

You can use both jquery and javascript method: if you have two images for example:

<img class="image1" src="image1.jpg" alt="image">
<img class="image2" src="image2.jpg" alt="image">

1)Jquery Method->

$(".image2").attr("src","image1.jpg");

2)Javascript Method->

var image = document.getElementsByClassName("image2");
image.src = "image1.jpg"

For this type of issue jquery is the simple one to use.

edited Mar 25 '16 at 15:56

Adam Joseph Looze

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answered Feb 12 '15 at 17:58

chandanjha

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The poster never indicated any interest in a jQuery solution. Nor is the jQuery method simpler. Do not answer a JS questions with jQuery solutions (unless the post indicates they want that). It just confuses people trying to learn JS. – metaColin Jan 30 '17 at 17:54
12

getElementByClassName returns collection of all elements. We need to mention index of the element too. var image = document.getElementsByClassName("image2")[0]; image.src = "image1.jpg" – Tushar Gaurav Jan 07 '18 at 17:44

score 39 · Answer 3 · edited Jan 22 '14 at 09:01

39

if you use the JQuery library use this instruction:

$("#imageID").attr('src', 'srcImage.jpg');

edited Jan 22 '14 at 09:01

Foreever

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answered Dec 03 '13 at 13:52

Alessandro Pirovano

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The question does not ask for a jQuery answer, include a jQuery tag, or suggest that it's okay to use jQuery. – Popnoodles Sep 03 '15 at 11:41
12

Telling folks to use jQuery when an equivalent function is built right into Javascript makes no sense. Every JS question does not require a jQuery answer. This solution is a kludge that prevents people from learning about what vanilla JS can already do. – metaColin Jan 30 '17 at 17:37

score 33 · Accepted Answer · answered Jul 30 '12 at 14:33

its ok now

function edit()
{   
    var inputs = document.myform;
    for(var i = 0; i < inputs.length; i++) {
        inputs[i].disabled = false;
    }

    var edit_save = document.getElementById("edit-save");

       edit_save.src = "../template/save.png";                              
}

Ben · Answer 5 · 2021-06-04T19:59:41.097

14

Give your image an id. Then you can do this in your javascript.

document.getElementById("blaah").src="blaah";

You can use this syntax to change the value of any attribute of any element.

edited Jun 04 '21 at 19:59

answered Jul 18 '14 at 23:31

Ben

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score 9 · Answer 6 · answered Jul 30 '12 at 13:20

9

<img src="../template/edit.png" name="edit-save" onclick="this.src = '../template/save.png'" />

answered Jul 30 '12 at 13:20

Donatas Olsevičius

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Inline JS isn't exactly a great idea. – FluorescentGreen5 Apr 26 '18 at 07:50

Fabrizio Calderan · Answer 7 · 2012-07-30T13:26:39.687

With the snippet you provided (and without making assumptions about the parents of the element) you could get a reference to the image with

document.querySelector('img[name="edit-save"]');

and change the src with

document.querySelector('img[name="edit-save"]').src = "..."

so you could achieve the desired effect with

var img = document.querySelector('img[name="edit-save"]');
img.onclick = function() {
    this.src = "..." // this is the reference to the image itself
};

otherwise, as other suggested, if you're in control of the code, it's better to assign an id to the image a get a reference with getElementById (since it's the fastest method to retrieve an element)

score 8 · Answer 8 · answered Oct 03 '14 at 17:24

In this case, as you want to change the src of the first value of your element, you have no need to build up a function. You can change this right in the element:

<a href='#' onclick='this.firstChild.src="../template/save.png"')'>
  <img src="../template/edit.png" id="edit-save"/>
</a>

You have several ways to do this. You can also create a function to automatize the process:

function changeSrc(p, t) { /* where p: Parent, t: ToSource */
  p.firstChild.src = t
}

Then you can:

<a href='#' onclick='changeSrc(this, "../template/save.png");'>
  <img src="../template/edit.png" id="edit-save"/>
</a>

score 4 · Answer 9 · answered Jan 19 '17 at 09:06

4

Maybe because you have a tag like a parent of the tag. That why you have to click two time the images.

For me the solution is this: http://www.w3schools.com/js/tryit.asp?filename=tryjs_intro_lightbulb

answered Jan 19 '17 at 09:06

Po Po

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Programmatically change the src of an img tag

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