some events refacturing

library/moment/benchmarks/zeroFill.js

@@ -0,0 +1,43 @@
+var Benchmark = require('benchmark');
+
+module.exports = {
+  name: 'zeroFill',
+  tests: {
+    zeroFillMath: {
+      setup: function() {
+        var zeroFillMath = function(number, targetLength, forceSign) {
+            var absNumber = '' + Math.abs(number),
+                zerosToFill = targetLength - absNumber.length,
+                sign = number >= 0;
+            return (sign ? (forceSign ? '+' : '') : '-') +
+                Math.pow(10, Math.max(0, zerosToFill)).toString().substr(1) + absNumber;
+        }
+      },
+      fn: function() {
+        zeroFillMath(Math.random() * 1e5 | 0, 5);
+        zeroFillMath(Math.random() * 1e5 | 0, 10);
+        zeroFillMath(Math.random() * 1e10 | 0, 20);
+      },
+      async: true
+    },
+    zeroFillWhile: {
+      setup: function() {
+        var zeroFillWhile = function(number, targetLength, forceSign) {
+          var output = '' + Math.abs(number),
+              sign = number >= 0;
+
+          while (output.length < targetLength) {
+              output = '0' + output;
+          }
+          return (sign ? (forceSign ? '+' : '') : '-') + output;
+        }
+      },
+      fn: function() {
+        zeroFillWhile(Math.random() * 1e5 | 0, 5);
+        zeroFillWhile(Math.random() * 1e5 | 0, 10);
+        zeroFillWhile(Math.random() * 1e10 | 0, 20);
+      },
+      async: true
+    }
+  }
+};