![](/static/253f0d9b/assets/icons/icon-96x96.png)
![](https://programming.dev/pictrs/image/170721ad-9010-470f-a4a4-ead95f51f13b.png)
I’ve also never seen any piece of software that would treat a single leading zero as octal
I thought JavaScript did that, but it turns out it doesn’t. I thought Java did that, but it turns out it doesn’t. Python did it until version 2.7: https://docs.python.org/2.7/library/functions.html#int. C still does it: https://en.cppreference.com/w/c/string/byte/strtol
Node doesn’t.
> parseInt('077') 77
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/parseInt