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146 lines (110 loc) · 3.55 KB
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// Do not change any of the funcxtion names
const multiplyByTen = num => num * 10;
const subtractFive = num => num - 5;
const areSameLength = (str1, str2) => (str1.length === str2.length);
// return true if the two strings have the same length
// otherwise return false
// code here
const areEqual = (x, y) => (x === y);
// return true if x and y are the same
// otherwise return false
// code here
const lessThanNinety = num => num < 90;
// return true if num is less than ninety
// otherwise return false
// code here
const greaterThanFifty = num => num > 50;
// return true if num is greater than fifty
// otherwise return false
// code here
const add = (x, y) => x + y;
// add x and y together and return the value
// code here
const subtract = (x, y) => x - y;
// subtract y from x and return the value
// code here
const divide = (x, y) => x / y;
// divide x by y and return the value
// code here
const multiply = (x, y) => x * y;
// multiply x by y and return the value
// code here
const getRemainder = (x, y) => x % y;
// return the remainder from dividing x by y
// code here
const isEven = num => num % 2 === 0; // return true if num is even
// otherwise return false
// code here
const isOdd = num => num % 2 !== 0;
// return true if num is odd
// otherwise return false
// code here
const square = num => num * num;
// square num and return the new value
// code here
const cube = num => Math.pow(num, 3);
// cube num and return the new value
// code here
const raiseToPower = (num, exponent) => Math.pow(num, exponent);
// raise num to whatever power is passed in as exponent
// code here
const roundNumber = num => Math.round(num);
// round num and return it
// code here
const roundUp = num => Math.ceil(num);
// round num up and return it
// code here
const addExclamationPoint = str => `${str}!`;
// add an exclamation point to the end of str and return the new string
// 'hello world' -> 'hello world!'
// code here
const combineNames = (firstName, lastName) => `${firstName} ${lastName}`;
// return firstName and lastName combined as one string and separated by a space.
// 'Lambda', 'School' -> 'Lambda School'
// code here
const getGreeting = name => `Hello ${name}!`;
// Take the name string and concatenate other strings onto it so it takes the following form:
// 'Sam' -> 'Hello Sam!'
// code here
// If you can't remember these area formulas then head over to Google or look at the test code.
const getRectangleArea = (length, width) => length * width;
// return the area of the rectangle by using length and width
// code here
const getTriangleArea = (base, height) => (base * height) / 2;
// return the area of the triangle by using base and height
// code here
const getCircleArea = radius => Math.round(Math.PI * Math.pow(radius, 2));
// return the rounded area of the circle given the radius
// code here
const getRectangularPrismVolume = (length, width, height) => length * width * height;
// return the volume of the 3D rectangular prism given the length, width, and height
// code here
// 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
};