roundTo

const result = roundTo(4.126, 2);

console.log(result);
// 4.13

console.log(roundTo(4.12, 2));
// 4.12

console.log(roundTo(4.4, 0));
// 4

console.log(roundTo(4.6, 0));
// 5

console.log(roundTo(-4.126, 2));
// -4.13

console.log(roundTo(-4.124, 2));
// -4.12

console.log(roundTo(3.14159, 3));
// 3.142

console.log(roundTo(3.14159, 4));
// 3.1416

console.log(roundTo(1234, -2));
// 1200

console.log(roundTo(1250, -2));
// 1300

console.log(roundTo(Infinity, 2));
// Infinity

console.log(roundTo(-Infinity, 2));
// -Infinity

roundTo(NaN, 2);
// RangeError: roundTo: value must not be NaN

roundTo(4.126, 2.5);
// RangeError: roundTo: decimals must be an integer