Question

56

rated 0 times [ 63] [ 7] / answers: 1 / hits: 110582 / 13 Years ago, mon, february 27, 2012, 12:00:00

I'm trying to log a function in javascript:

console.log(callback)

>>[Function]

I want to see what the function is. Can I do that? Thanks.

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answered 13 Years ago mckenna · Accepted Answer

If it's a user defined function you can use:

console.log(callback.toString());

Otherwise you'll just get something like [native code] since built in functions are not written in JavaScript.

Example:

function x(){}



// Prints function x(){}

(function(callback){ console.log(callback.toString()); })(x);