javascript function as argument - Illegal invocation. Why?

Question

why the following code doesn't work? it is going in Illegal invocation exception:

function forEach(array , action) {
    for (var i = 0; i < array.length; i++)
        action(array[i]);
}
forEach([1,2,3], console.log);

Answer 1

You need to do it like this:

function forEach(array , action) {
    for (var i = 0; i < array.length; i++){
        action(array[i]);
    }
}

You can call the above as:

forEach([1,2,3], function(value){
    console.log(value)
});

OR

forEach([1,2,3], console.log.bind(console));