LolJS

This is a collection of nonsensical stuff in different programming languages. It's updated when I find something noteworthy. You can however send submissions to hugo@lysator.liu.se.

PHP

Output

$a = "1d9";
echo   $a;
echo ++$a;
echo ++$a;

Output

=> 1d9
=> 1e0
=> 2

Unary ++ works differently from binary +

Output

$a = "1a;"
echo $a + 1;
echo ++$a;

Output

=> 2
=> 1b

JavaScript

Output

[98, 99, 100].sort();

Output

[100, 98, 99]

Output

[,,] == ","

Output

true