Passing arguments forward to another javascript function

Question

I've tried the following with no success:

function a(args){
    b(arguments);
}

function b(args){
    // arguments are lost?
}

a(1,2,3);

In function a, I can use the arguments keyword to access an array of arguments, in function b these are lost. Is there a way of passing arguments to another javascript function like I try to do?

Answer 1

Use .apply() to have the same access to arguments in function b, like this:

console.log = function(x) { document.write(x === undefined ? undefined : JSON.stringify(x) + "<br />"); };

function a(){
    b.apply(null, arguments);
}
function b(){
    console.log(arguments); //arguments[0] = 1, etc
}
a(1,2,3);