Find Maximum in an Array

JavaScript

Technical Specification

Return the maximum number from a given non-empty array of numbers.

Input/Output Samples

Input:[1, 5, 3, 9, 2]

Output:9

Input:[-3, -10, -2]

Output:-2

Optimal Logic Path

function findMax(arr) {
  return Math.max(...arr);
}

Architectural Deep-Dive

Math.max accepts separate arguments, so using the spread operator we can easily get the largest value from the array.