Just another update

2015-02-20 00:35:01 -05:00 · 2015-02-20 00:35:01 -05:00 · 00a190b0a6
commit 00a190b0a6
parent a25938f123
6591 changed files with 94363 additions and 23227 deletions
--- a/Task/Averages-Arithmetic-mean/JavaScript/averages-arithmetic-mean-4.js
+++ b/Task/Averages-Arithmetic-mean/JavaScript/averages-arithmetic-mean-4.js
@ -0,0 +1,9 @@
+Array.prototype.mean = function() {
+    return !this.length ? 0
+        : this.reduce(function(pre, cur, i) {
+            return (pre * i + cur) / (i + 1);
+            });
+    }
+
+alert( [1,2,3,4,5].mean() );   // 3
+alert( [].mean() );            // 0