Javascript pointer to function

Question

Javascript is def not my main programming language I for practice I wanted to do something simple, at least i thought ;)

This is my code:

function Log () {}

Log.format = function (func, facility, text) {
    func("hellow");
};

Log.debug = function(facility, text) {
    Log.format(console.warn);
};

When I call Log.debug("we", "deb"); I get a Uncaught TypeError: Illegal invocation error. What am I doing wrong?

score 1 · Accepted Answer · answered Sep 02 '14 at 19:10

1

Depending on the browser, console methods can only be called in the context of console. Try Log.format(console.warn.bind(console));

answered Sep 02 '14 at 19:10

user123444555621

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If possible could you elaborate why this is so? – Haagenti Sep 02 '14 at 19:10
As to the question *why*: I don't know. It's different in Firefox. – user123444555621 Sep 02 '14 at 19:12
@MouNtant: `console` is basically an extension by the browser, it's not a standard JS feature. So the *why* question can only be answered by the people working on providing this extension. – Felix Kling Sep 02 '14 at 19:23

Javascript pointer to function

1 Answers1