Better Error handling

[Timon-D3v]

Please add a better error system. My idea would be to create a class that extends the normal error. Similar like this:

class testError extends Error {
    constructor(id) {
        super(id);
        this.message = `The element with id ${id} does not exist!`;
    }
}

throw new TestError( "myId");

This would show up similar like this:

While it now is like this:

[Timon-D3v]

I did it with a error function that is called when something does not work. Usage:

errorFunction("on");

// While the error function looks like this:
const errorFunction = id => console.log(`There was a error while setting .${id} and the replaced function is called ._${id}`)