Question

How to check if an array contains a pair of numbers whose product is even in Node.js

Answer 1

// A produce of a pair of integers will always be even if at least 1 of them are even

function arrayContainsAPairOfEvenProduct(arr) {
  let oddCount = 0;

  for (let i = 0; i < arr.length; i++) {
    if (arr[i] % 2 === 0) {
      return true;
    }
  }

  return false;
}

const arr = [1, 1, 3, 3, 5, 5, 4, 9, 9, 7]; // 4 * ? = Even

console.log(arrayContainsAPairOfEvenProduct(arr));


 
 
 
/*
run:
 
true
 
*/

 

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