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// Do not change any of the funcxtion names
const multiplyByTen = (num) => {
// return num after multiplying it by ten
return num * 10;
};
const subtractFive = (num) => {
// return num after subtracting five
return num - 5;
};
const areSameLength = (str1, str2) => {
// return true if the two strings have the same length
// otherwise return false
if (str1 === str2) {
return true;
} return false;
};
const areEqual = (x, y) => {
// return true if x and y are the same
// otherwise return false
if (x === y) {
return true;
} return false;
};
const lessThanNinety = (num) => {
// return true if num is less than ninety
// otherwise return false
if (num < 90) {
return true;
} return false;
};
const greaterThanFifty = (num) => {
// return true if num is greater than fifty
// otherwise return false
if (num > 50) {
return true;
} return false;
};
const add = (x, y) => {
// add x and y together and return the value
return x + y;
};
const subtract = (x, y) => {
// subtract y from x and return the value
return x - y;
};
const divide = (x, y) => {
// divide x by y and return the value
return x / y;
};
const multiply = (x, y) => {
// multiply x by y and return the value
return x * y;
};
const getRemainder = (x, y) => {
// return the remainder from dividing x by y
return x % y;
};
const isEven = (num) => {
// return true if num is even
// otherwise return false
if (num % 2 === 0) {
return true;
} return false;
};
const isOdd = (num) => {
// return true if num is odd
// otherwise return false
if (num % 2 !== 0) {
return true;
} return false;
};
const square = (num) => {
// square num and return the new value
return num.Math.pow(2);
};
const cube = (num) => {
// cube num and return the new value
return num.Math.pow(3);
};
const raiseToPower = (num, exponent) => {
// raise num to whatever power is passed in as exponent
return num.Math.pow(exponent);
};
const roundNumber = (num) => {
// round num and return it
return num.Math.round;
};
const roundUp = (num) => {
// round num up and return it
return num.Math.roundUp;
};
const addExclamationPoint = (str) => {
// add an exclamation point to the end of str and return the new string
// 'hello world' -> 'hello world!'
return `${str}!`;
};
const combineNames = (firstName, lastName) => {
// return firstName and lastName combined as one string and separated by a space.
// 'Lambda', 'School' -> 'Lambda School'
return `${firstName} ${lastName}`;
};
const getGreeting = (name) => {
// Take the name string and concatenate other strings onto it so it takes the following form:
// 'Sam' -> 'Hello Sam!'
return `Hello ${name}!`;
};
// If you can't remember these area formulas then head over to Google or look at the test code.
const getRectangleArea = (length, width) => {
// return the area of the rectangle by using length and width
return length * width;
};
const getTriangleArea = (base, height) => {
// return the area of the triangle by using base and height
return (base * height) / 2;
};
const getCircleArea = (radius) => {
// return the rounded area of the circle given the radius
return Math.PI * radius.Math.pow(2);
};
const getRectangularPrismVolume = (length, width, height) => {
// return the volume of the 3D rectangular prism given the length, width, and height
return length * width * height;
};
// Do not modify code below this line.
// --------------------------------
module.exports = {
multiplyByTen,
subtractFive,
areSameLength,
areEqual,
lessThanNinety,
greaterThanFifty,
add,
subtract,
divide,
multiply,
getRemainder,
isEven,
isOdd,
square,
cube,
raiseToPower,
roundNumber,
roundUp,
addExclamationPoint,
combineNames,
getGreeting,
getRectangleArea,
getTriangleArea,
getCircleArea,
getRectangularPrismVolume
};