Javascript :: else if #js

ElseIf1.js

function maxOfThree(num1, num2, num3) {
  if (num1 > num2 && num1 > num3) {
    return num1;
  } else if (num2 > num1 && num2 > num3) {
    return num2;
  } else {
    return num3;
  }
}

function everyWhichWay(x, y, z) {
  if (x + y === z) {
    return 'sum';
  } else if (x - y === z) {
    return 'difference';
  } else if (x * y === z) {
    return 'product';
  } else if (x / y === z) {
    return 'fraction';
  } else {
    return null;
  }
}

// another way to write top function (maxOfThree) using nested if statement
function getMax(firstNum, secondNum, thirdNum) {
  if (firstNum > secondNum)
    {if (firstNum > secondNum) {
      return firstNum;
    } return thirdNum;
  } else if (secondNum > thirdNum) {
    return secondNum;
  } else {
    return thirdNum;
  }
}