Absolute value

2 snippets across 2 stacks — JavaScript, Python

JSJavaScript

syntax

base ** exponent
Math.sqrt(n)
Math.cbrt(n)
Math.pow(base, exp)

example

console.log(2 ** 10);         // 1024
console.log(Math.sqrt(144));  // 12
console.log(Math.cbrt(27));   // 3
console.log(Math.abs(-42));   // 42

Note The ** operator is cleaner than Math.pow() and works with BigInt too: 2n ** 64n.

syntax

abs(number)
round(number, ndigits)

example

print(abs(-42.5))
print(round(3.14159, 2))
print(round(2.5))
print(round(3.5))

output

Note round() uses banker's rounding — it rounds to the nearest even number when the value is exactly halfway. This surprises many developers.