littleclosures.js

// quick demo of the technique of using
// closures to fix value references for functions
// that rely on loop variables that change.

var littleprinters = [];
for (var i = 0; i < 10; i++) {
  littleprinters.push(function() {
  	return i;
  });
}
// pwned!
littleprinters[5]();


var littleclosures = [];
for (var i = 0; i < 10; i++) {
	littleclosures.push((function(i) {
	  return function() {
  		return i;
  	};
  })(i));
}
// success!
littleclosures[5]();