fork download 
  1. var arr = [];
  2. alert(arr.length);
  3. arr[5] = 5;
  4. alert(arr.length);
Runtime error #stdin #stdout 0.29s 214272KB
comments (?)
stdin 
Standard input is empty
stdout 
Standard output is empty
https://ideone.com/g5Fea
language:
JavaScript (rhino 1.7.9)
created:
14 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!