exercises.js

//Do not change any of the function names

function multiplyByTen(num) {
    return num * 10;
}

function subtractFive(num) {
    return num - 5;
}

function areSameLength(str1, str2) {
    return str1.length === str2.length;
}

function areEqual(x, y) {
    return x === y;
}

function lessThanNinety(num) {
    return num < 90;
}

function greaterThanFifty(num) {
    return num > 50;
}

function add(x, y) {
    return x + y;
}

function subtract(x, y) {
    return x - y;
}

function divide(x, y) {
    return x / y;
}

function multiply(x, y) {
    return x * y;
}

function getRemainder(x, y) {
    return x % y;
}

function isEven(num) {
    return num % 2 == 0;
}

function isOdd(num) {
    return num % 2 == 1;
}

function square(num) {
    return Math.pow(num, 2);
}

function cube(num) {
    return Math.pow(num, 3);
}

function raiseToPower(num, exponent) {
    return Math.pow(num, exponent);
}

function roundNumber(num) {
    return Math.round(num);
}

function roundUp(num) {
    return Math.ceil(num);
}

function addExclamationPoint(str) {
    return str + '!';
}

function combineNames(firstName, lastName) {
    return firstName + ' ' + lastName;
}

function getGreeting(name) {
    return 'Hello ' + name + '!';
}

//If you can't remember these area formulas then head over to Google or look at the test code.

function getRectangleArea(length, width) {
    return length * width;
}

function getTriangleArea(base, height) {
    return height * (base / 2);
}

function getCircleArea(radius) {
    return Math.round(Math.pow(radius, 2) * 3.14);
}

function getRectangularPrismVolume(length, width, height) {
    return length * width * height;
}

//Do not modify code below this line.
////--------------------------------

module.exports = {
    multiplyByTen: multiplyByTen,
    subtractFive: subtractFive,
    areSameLength: areSameLength,
    areEqual: areEqual,
    lessThanNinety: lessThanNinety,
    greaterThanFifty: greaterThanFifty,
    add: add,
    subtract: subtract,
    divide: divide,
    multiply: multiply,
    getRemainder: getRemainder,
    isEven: isEven,
    isOdd: isOdd,
    square: square,
    cube: cube,
    raiseToPower: raiseToPower,
    roundNumber: roundNumber,
    roundUp: roundUp,
    addExclamationPoint: addExclamationPoint,
    combineNames: combineNames,
    getGreeting: getGreeting,
    getRectangleArea: getRectangleArea,
    getTriangleArea: getTriangleArea,
    getCircleArea: getCircleArea,
    getRectangularPrismVolume: getRectangularPrismVolume
};