How to set the image src using jQuery

Question

I am trying to change the image src attribute using jQuery

jQuery(\"#imageID\").attr(\'src\',\'http://localhost:8080/images/1/myImage.png\' );

Answer 1

You need to extract the url part:

var backgroundImage = $("#imageBlock")
    .css('backgroundImage')
    .replace(/"/g,"")
    .replace(/url\(|\)$/ig, "");
jQuery("#imageID").attr('src', backgroundImage);

Answer 2

It's because the url() string is wrapped around it. You'll need to strip it from the string, for example using the replace function...

var bgimg = jQuery("#imageBlock").css('background-image').replace('url(', '');
bgimg.replace(')', '');

Answer 3

IMO, slice is more appropriate than substring or replace. Try this:

jQuery("#imageID").attr(
    'src',
    jQuery("#imageBlock").css('background-image').slice(4,-1)
);

Here, you're slicing the string in between url( and ). See MDC on slice for a detailed description of the method.

Answer 4

You would need to strip the url( and closing ) parts out for that to work.

So url(http://localhost:8080/images/1/myImage.png)

becomes

http://localhost:8080/images/1/myImage.png

You could do this with a substring, a regex replace or any method of your choosing.

http://www.w3schools.com/jsref/jsref_replace.asp

Perhaps:

jQuery("#imageID").attr('src',jQuery("#imageBlock").css('background-image').replace('url(','').replace(')','') )