Re: How to pass a parameter via an image.onload function call?

[Jorge]

On Oct 23, 10:36 am, Tuxedo <[e-mail]:

How is it possible to pass a parameter via a function that runs upon onload
of an off-screen image? Like for example:

(...)

function first_function(PARAMETER){
preload_image = new Image(800,600);
preload_image.onload = photo_preloaded(PARAMETER);
preload_image.src = 'images/photo.jpg';

}

function photo_preloaded(PARAMETER){
alert(PARAMETER)

}

(...)

Is is possible to run the second function only if the image has been
preloaded, with the parameter? If so, how would this be constructed?

Yes:

function first_function (PARAMETER) {
preload_image = new Image(800,600);
preload_image.onload = function () { photo_preloaded(PARAMETER); };
preload_image.src = 'images/photo.jpg';
}

--
Jorge.

[Tuxedo]

Jorge wrote:
[..].

preload_image.onload = function () { photo_preloaded(PARAMETER); };

Thanks for posting this snipped! I understand it uses a so-called function
literal, or unnamed function call. It works fine, and appears to be the
most straighforward solution specifically for what I'd like to achieve.