Store reference to `call` function

Question

I noticed something curious earlier today. I can\'t seem to store a reference to the call property of a function, then execute it. Example:

var          


        

Answer 1

You need to keep the binding to console. Try this:

var logCall = console.log.call.bind(console.log);
// example: logCall(console, "foobar");

or

var log = console.log.bind(console);
// example: log("foobar");

For a bound reference to log.

Edit: jsfiddle: http://jsfiddle.net/67mfQ/2/

Answer 2

This is my favorite code in JavaScript:

var bind = Function.bind;
var call = Function.call;

var bindable = bind.bind(bind);
var callable = bindable(call);

You can use the bindable function to grab a reference to f.bind. Similarly you can use the callable function to grab a reference to f.call as follows:

var log = callable(console.log, console);

Now all you need to do is call the log function like any other function:

log("Hello World!");

That's all folks.