What's the issue with +0 in javascript?

Question

Why do 37291+05472 and 37291+5472 give different output?

console.log(37291+05472)

console.log(37291+5472)

This is a non-standard extension only allowed in sloppy mode. Do not rely on it. Do not use leading zeros. — Oriol, Dec 09 '16 at 16:00

score 4 · Accepted Answer · answered Dec 09 '16 at 15:57

4

Starting a number with 0 declares that is an octal (base 8) and not a decimal (base 10).

answered Dec 09 '16 at 15:57

Quentin

How can I set `05472` to be decimal? I tried `d05472` just now, but it throws error – Washington Guedes Dec 09 '16 at 16:00
Just don't put a `0` in front of it! `5472` – Quentin Dec 09 '16 at 16:04

1 Answers1