Custom override console.log to display date on every return string

gistfile1.js

function showDate(){
  var date = new Date(),
    str = date.toUTCString();

  return str;
}

var orig = console.log;

console.log = function() {
  var msgs = [];

  while(arguments.length) {
      msgs.push("[" + showDate() + "]" + ': ' + [].shift.call(arguments));
  }

  orig.apply(console, msgs);
};

Example:

console.log("Loaded data from JSON");

It will look like this on the console:

hint= n = 10

console.log((function f(n)
{return ((n>1)? n*f(n-1):n)})(10))

which value return?

Improved:

{
	var orig = console.log

	console.log = function log() {
		orig.apply(console, [`[${new Date().toISOString().replace("T", " ").replace(/\..+/, "")}]`, ...arguments])
	}
}

mark

Chrome DevTools has this built in. Go to 3 dots (top right) > settings > Console > Show timestamps