Question

I’d like a quick way to add something like

console.log(functionName)

to the top of every function.

Is there a quick and easy way to do this, or would I need to manually add that code to every function.

Answer 1

You could try something like this:

for( var x in window) {
    if( typeof window[x] == "function") {
        (function(x) {
            var ox = window[x];
            window[x] = function() {
                console.log(x);
                ox.apply(null,arguments);
            };
        })(x);
    }
}

However, this would only work on global functions, not functions of objects or scoped functions. It’s also kind of a nuke, so is a poor substitute for manually adding console logging to the specific functions you want to call.

Instead it would probably be better to insert a breakpoint in the code (using the browser’s developer tools) and checking the call stack at that point.