What is the declaration syntax name of this function only works in JScript (IE)?

Question

I recently found this code on the Internet:

function window::onload() {
    alert('onload!');
}

This (weird) syntax only works in Internet Explorer (IE 8 in my case), and I wasn't sure how it was called so that I could look for it.

I just want to know if there is any documentation related to this type of functions, and if so, what are they called?

+3

Philippe97 Feb 16 '14 at 23:51

2 answers

ECMAScript MS-ES5EX

0

Guffa · Accepted Answer · 2014-02-17T00:04:15+0000

This is an automatic event binding in JScript, similar to the naming convention Object_EventNamein VBScript.

Presumably, it was removed in a later version of Internet Explorer, as well as some other rarely used non-standard features.