Question

I am writing code in modules, and each module can be debugged individually. I want to turn on or off console.log messages on a module level, to focus on just the module I’m working on.

I could have a _debug_ variable for each module set to true or false, and write log messages like

if(_debug_) {
   console.log('The is a debug message.');
}

I find this approach a little cumbersome. Can I do better?

Answer 1

You can hijack the console object upon entering the module scope if you want to disable debug statements. Here’s a simple way to generate a substitute “console” object:

function noopConsole()
{
    var konsol = {};
    function noop(){}

    for (var k in window.console)
    {
        konsol[k] = noop;
    }

    return konsol;
}

Then, at the beginning of the module:

var console = _debug_ ? window.console || noopConsole();

That’s it.