Google Interview Question: How would you extend Array in JavaScript so that it could add all the values stored in an array?

Notifications

Google

How would you extend Array in JavaScript so that it could add all the values stored in an array?

Anonymous

Dec 9, 2010

Array.prototype.addValues = function(){ var out=0; for (x = 0; x < arr.length; x++){ out = out + arr[x]; } return out; }

Anonymous

Mar 8, 2010

This is an exploration of Object prototypes, which demonstrates the level of sophistication with the language.

Anonymous

Jun 30, 2013

arr should be this