How to efficiently change image attribute “src” from relative URL to absolute using jQuery?
I need to change the src for an html image tag from relative to absolute url.
I am using the following code. urlRelative and urlAbsolute are created correctly but I cannot modify the image in the last line.
What could be wrong wrong in my script?
..... // other code here
request.done(function(resp) {
var imgTags = $('img', resp).each(function() {
var urlRelative = $(this).attr("src");
var urlAbsolute = self.config.proxy_server + self.config.location_images + urlRelative;
$(this).attr("src").replace(urlRelative, urlAbsolute); // problem here
});
Try like this
$(this).attr("src", urlAbsolute)
Try $(this).attr("src", urlAbsolute);
jQuery("#my_image").attr("src", "first.jpg")
Instead of below code:
$(this).attr("src").replace(urlRelative, urlAbsolute);
Use this:
$(this).attr("src",urlAbsolute);
Your code can simplified a lot to
$('img', resp).attr('src', function(idx, urlRelative ) {
return self.config.proxy_server + self.config.location_images + urlRelative;
});
The replace method in Javascript returns a value, and does not act upon the existing string object. See: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/replace
In your example, you will have to do
$(this).attr("src", $(this).attr("src").replace(...))
change image captcha refresh
html:
<img id="captcha_img" src="http://localhost/captcha.php" />
jquery:
$("#captcha_img").click(function()
{
var capt_rand=Math.floor((Math.random() * 9999) + 1);
$("#captcha_img").attr("src","http://localhost/captcha.php?" + capt_rand);
});
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