Safer console.log

safe_console.js

// A safer console object (https://gist.github.com/nathanl/6368185)
// - Ensures `console.log` doesn't cause errors in browsers with no console
// - Lets you enable/disable console logging (using console.enable = true/false)
// - Supports all console methods documented here: https://developer.mozilla.org/en-US/docs/Web/API/console
//
// Less fancy but lighter weight than this: http://benalman.com/projects/javascript-debug-console-log/
safe_console = {
  enabled: false,
  original_console: (function(){
    // If the browser has no usable one, define a no-op
    return (typeof(window.console === 'object') && typeof(window.console.log) === 'function') ? window.console : {log: function(){}};
  })()
};

// Metaprogramming in JS! Wooooooooooooooo
methods = ['debug', 'dir', 'error', 'group', 'groupCollapsed', 'groupEnd', 'info', 'log', 'time', 'timeEnd', 'trace', 'warn'];
for (i = 0; i < methods.length; i++) {
  method_name = methods[i];
  (function(method_name){
    safe_console[method_name] = function() {
      if (!this.enabled) { return; }
      // TODO: use `(new Error).stack.split("\n")` to output where were called from
      this.original_console[method_name].apply(this.original_console, arguments);
    };
  }
  )(method_name);
}

// In case we missed any methods: inherit, regardless of `enabled` switch
safe_console.__proto__ = safe_console.original_console;

window.console = safe_console;

Superseded by: https://github.com/nathanl/consolation