3 ms·

Actually, I think that might work in Javascript! All the numbers are IEE754 floating point numbers and there are separate values for positive and negative zero

• disk0 6y ago
  iirc using numeric literal values there's a coercion step—a console example: let arr = new Array(10); // 1e1 => 10 arr[1e1] = 1; console.log(`arr[10] === 1 => ${arr[10] === 1}`) console.log(`arr[1e1] === 1 => ${arr[1e1] === 1}`) So -0 becomes 0: arr[0] = 2; console.log(`arr[0] === 2 => ${arr[0] === 2}`); console.log(`arr[-0] === 2 => ${arr[-0] === 2}`); arr[-0] = 3; console.log(`arr[0] === 3 => ${arr[0] === 3}`); console.log(`arr[-0] === 3 => ${arr[-0] === 3}`);