Javascript get function by name

Question

How do I access this function:

readURL: function() {
    var $input = $(this);
    if (this.files && this.files[0]) {
        var reader = new FileReader();
        reader.onload = function(e) {
            $input.next('.input-preview').attr('src', e.target.result).show();
        }
        reader.readAsDataURL(this.files[0]);
    }

    $(".ImageInput").change(readURL);

},

With this:

    $(".ImageInput").change(readURL);

Before the function header looked like this:

function readURL()

And it worked, but how I access the other declaration.

Answer 1

readURL is a property of an object (that you aren't showing). So pass the object name:

$(".ImageInput").change(yourObject.readURL);