JavaScript variable having decimals with preceding zero prints wrong on Firebug

Question

It might be a dumb question, today I was playing with Firebug,

I typed:

var test = 100011;
console.log(test);

I get out put as 100011 which is correct

But when I type the following code:

var test = 0100011;
console.log(test);

I get 4097

Why am I getting 4097?

possible duplicate of [Javascript variable with leading zeroes](http://stackoverflow.com/questions/17114258/javascript-variable-with-leading-zeroes) — Qantas 94 Heavy, Nov 14 '14 at 13:36
Thank you, thats exact question.. I will remove mine to remove duplicate from SO — Dilip Rajkumar, Nov 14 '14 at 13:39

score 2 · Accepted Answer · answered Nov 14 '14 at 13:37

2

A preceding 0 causes the number to be interpreted in octal.

A preceding 0x causes the number to be interpreted in hexadecimal.

answered Nov 14 '14 at 13:37

j-da

1

You may want to look in to using strict mode. It flags octal numbers as an error. https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Strict_mode – River Nov 14 '14 at 13:41

1 Answers1