Javascript Interview Question Number Get perfect square

Introduction

Given an integral number, determine if it is a perfect square; 

function isSquare(n){
  
}

console.log(isSquare(-3)); // => false
console.log(isSquare(4)); // => true



'use strict';
/**
 * First get the sqrt of 'n'.
 * Then, test if the result is a float or integer.
 * Integers return true, which means 'n' was a perfect square.
 */
let isSquare = (n) => Math.sqrt(n) % 1 === 0;

console.log(isSquare(-3)); // => false
console.log(isSquare(4)); // => true



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