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FunctionHooker.js

Hook most functions on runtime via the function name

This script should not be not be installed directly. It is a library for other scripts to include with the meta directive // @require https://update.greasyfork.org/scripts/469993/1214452/FunctionHookerjs.js


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Author
TetteDev
Version
0.1
Created
2023-07-02
Updated
2023-07-02
Size
3.6 KB
License
N/A

Example Usage

const hooker = new FunctionHooker();
hooker.hook('window.addEventListener', (...args) =>
{
const dissallowedEvents = ["pagehide"]
if (dissallowedEvents.includes(args[0])) return;
// gets the unhooked original function if you need to call it in the hook
const o = hooker.getOriginal("window.addEventListener");
// addEventListener only has either 2 or 3 arguments
if (args.length == 3) o(args[0], args[1], args[2]);
else if (args.length == 2) o(args[0], args[1]);
});