How to change source of img using javascript

Question

I need to change the source of image if its width is less than 600px. I created following script but it is not working.

var sizewidth = window.innerWidth;
screensize();

function screensize() {
  if (sizewidth < 601) {
    document.getElementById('logotipo').src = "../imgs/image.png";
  }
}

What is wrong in it? Can someone help me correct it?

Can use media queries.

Harshit kyal
– Harshit kyal

2017-12-26 11:51:45 +00:00
Commented Dec 26, 2017 at 11:51 — Harshit kyal
– Harshit kyal, Commented Dec 26, 2017 at 11:51
Yes, but i want use javascript to learn about this language

d3pod
– d3pod

2017-12-26 11:54:02 +00:00
Commented Dec 26, 2017 at 11:54 — d3pod
– d3pod, Commented Dec 26, 2017 at 11:54
what's the error coming?

Sanchit Patiyal
– Sanchit Patiyal

2017-12-26 11:56:19 +00:00
Commented Dec 26, 2017 at 11:56 — Sanchit Patiyal
– Sanchit Patiyal, Commented Dec 26, 2017 at 11:56

Bhuwan · Accepted Answer · 2017-12-26 12:07:03Z

1

I copied your code and I think its working fine. Maybe issue is the placement of your script file/code. Just check below

var sizewidth = window.innerWidth;
screensize();

function screensize() {
  if (sizewidth < 601) {
    document.getElementById('logotipo').src = "../imgs/image.png";
  }
}

<img id="logotipo" src="logo.png">

edited Dec 26, 2017 at 12:07

answered Dec 26, 2017 at 11:58

Bhuwan

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2 Comments

d3pod Over a year ago

Thanks, I think that the problem is in the location of script in my html.

NewToJS Over a year ago

@d3pod replace the function call screensize(); for window.onload=screensize; this will ensure the DOM has loaded.

Tai · Accepted Answer · 2017-12-26 11:54:44Z

1

    var sizewidth = window.innerWidth;
    screensize();
    function screensize() {
        if (sizewidth < 601) {
            document.getElementById('logotipo').setAttribute("src", "../imgs/image.png");
        }
    }

answered Dec 26, 2017 at 11:54

Tai

916 bronze badges

1 Comment

cst1992 Over a year ago

If you're using the OP's code, please indicate where you made the change. Otherwise the reader has to unnecessarily compare each line. Better yet, just paste the one line you made the change on and include a short explanation.

codeLover · Accepted Answer · 2017-12-26 12:15:07Z

0

Are you sure the path of your image is correct??(you can try looking for console logs on your web browser) If yes then,try putting double \ in your code instead of \

edited Dec 26, 2017 at 12:15

answered Dec 26, 2017 at 12:13

codeLover

2,5921 gold badge13 silver badges29 bronze badges

1 Comment

NewToJS Over a year ago

What? "try putting double \ in your code instead of \" the OP doesn't have any backslashes in the source code? I think your approach to solving this is far from the actual issue. The source code functions just find if placed in the correct location on the page or placed within a window load function.

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