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Commit 52c65d2

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Ryan HamblinRyan Hamblin
Ryan Hamblin
authored and
Ryan Hamblin
committed
added solutions
1 parent b2098d3 commit 52c65d2
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‎src/project-1.js‎

Copy file name to clipboardExpand all lines: src/project-1.js
+37-66Lines changed: 37 additions & 66 deletions
Original file line numberDiff line numberDiff line change
@@ -1,144 +1,115 @@
1-
// Do not change any of the funcxtion names
2-
31
const multiplyByTen = (num) => {
4-
// return num after multiplying it by ten
5-
// code here
2+
return num * 10;
63
};
74

85
const subtractFive = (num) => {
9-
// return num after subtracting five
10-
// code here
6+
return num - 5;
117
};
128

139
const areSameLength = (str1, str2) => {
14-
// return true if the two strings have the same length
15-
// otherwise return false
16-
// code here
10+
return str1.length === str2.length;
1711
};
1812

1913
const areEqual = (x, y) => {
20-
// return true if x and y are the same
21-
// otherwise return false
22-
// code here
14+
return x === y;
2315
};
2416

2517
const lessThanNinety = (num) => {
26-
// return true if num is less than ninety
27-
// otherwise return false
28-
// code here
18+
if (num < 90) {
19+
return true;
20+
}
21+
return false;
2922
};
3023

3124
const greaterThanFifty = (num) => {
32-
// return true if num is greater than fifty
33-
// otherwise return false
34-
// code here
25+
if (num > 50) {
26+
return true;
27+
}
28+
return false;
3529
};
3630

3731
const add = (x, y) => {
38-
// add x and y together and return the value
39-
// code here
32+
return x + y;
4033
};
4134

4235
const subtract = (x, y) => {
43-
// subtract y from x and return the value
44-
// code here
36+
return x - y;
4537
};
4638

4739
const divide = (x, y) => {
48-
// divide x by y and return the value
49-
// code here
40+
return x / y;
5041
};
5142

5243
const multiply = (x, y) => {
53-
// multiply x by y and return the value
54-
// code here
44+
return x * y;
5545
};
5646

5747
const getRemainder = (x, y) => {
58-
// return the remainder from dividing x by y
59-
// code here
48+
return x % y;
6049
};
6150

6251
const isEven = (num) => {
63-
// return true if num is even
64-
// otherwise return false
65-
// code here
52+
if (num % 2 === 0) {
53+
return true;
54+
}
55+
return false;
6656
};
6757

6858
const isOdd = (num) => {
69-
// return true if num is odd
70-
// otherwise return false
71-
// code here
59+
if (num % 2 === 0) {
60+
return false;
61+
}
62+
return true;
7263
};
7364

7465
const square = (num) => {
75-
// square num and return the new value
76-
// code here
66+
return num * num;
7767
};
7868

7969
const cube = (num) => {
80-
// cube num and return the new value
81-
// code here
70+
return num * num * num;
8271
};
8372

8473
const raiseToPower = (num, exponent) => {
85-
// raise num to whatever power is passed in as exponent
86-
// code here
74+
return num ** exponent;
8775
};
8876

8977
const roundNumber = (num) => {
90-
// round num and return it
91-
// code here
78+
return Math.round(num);
9279
};
9380

9481
const roundUp = (num) => {
95-
// round num up and return it
96-
// code here
82+
return Math.ceil(num);
9783
};
9884

9985
const addExclamationPoint = (str) => {
100-
// add an exclamation point to the end of str and return the new string
101-
// 'hello world' -> 'hello world!'
102-
// code here
86+
return (str += '!');
10387
};
10488

10589
const combineNames = (firstName, lastName) => {
106-
// return firstName and lastName combined as one string and separated by a space.
107-
// 'Lambda', 'School' -> 'Lambda School'
108-
// code here
90+
return `${firstName} ${lastName}`;
10991
};
11092

11193
const getGreeting = (name) => {
112-
// Take the name string and concatenate other strings onto it so it takes the following form:
113-
// 'Sam' -> 'Hello Sam!'
114-
// code here
94+
return `Hello ${name}!`;
11595
};
11696

117-
// If you can't remember these area formulas then head over to Google or look at the test code.
118-
11997
const getRectangleArea = (length, width) => {
120-
// return the area of the rectangle by using length and width
121-
// code here
98+
return length * width;
12299
};
123100

124101
const getTriangleArea = (base, height) => {
125-
// return the area of the triangle by using base and height
126-
// code here
102+
return 0.5 * base * height;
127103
};
128104

129105
const getCircleArea = (radius) => {
130-
// return the rounded area of the circle given the radius
131-
// code here
106+
return Math.round(radius * radius * Math.PI);
132107
};
133108

134109
const getRectangularPrismVolume = (length, width, height) => {
135-
// return the volume of the 3D rectangular prism given the length, width, and height
136-
// code here
110+
return width * height * length;
137111
};
138112

139-
// Do not modify code below this line.
140-
// --------------------------------
141-
142113
module.exports = {
143114
multiplyByTen,
144115
subtractFive,
Collapse file

‎src/project-2.js‎

Copy file name to clipboardExpand all lines: src/project-2.js
+97-53Lines changed: 97 additions & 53 deletions
Original file line numberDiff line numberDiff line change
@@ -1,110 +1,154 @@
1-
// Do not change any of the function names
2-
31
const getBiggest = (x, y) => {
4-
// x and y are integers. Return the larger integer
5-
// if they are the same return either one
2+
if (x > y) {
3+
return x;
4+
} else if (x === y) {
5+
return y;
6+
}
7+
return y;
68
};
79

810
const greeting = (language) => {
9-
// return a greeting for three different languages:
10-
// language: 'German' -> 'Guten Tag!'
11-
// language: 'Spanish' -> 'Hola!'
12-
// language: 'Chinese' -> 'Ni Hao!'
13-
// if language is undefined return 'Hello!'
11+
switch (language) {
12+
case 'German':
13+
return 'Guten Tag!';
14+
case 'Spanish':
15+
return 'Hola!';
16+
case 'Chinese':
17+
return 'Ni Hao!';
18+
default:
19+
return 'Hello!';
20+
}
1421
};
1522

1623
const isTenOrFive = (num) => {
17-
// return true if num is 10 or 5
18-
// otherwise return false
24+
if (num === 10 || num === 5) {
25+
return true;
26+
}
27+
return false;
1928
};
2029

2130
const isInRange = (num) => {
22-
// return true if num is less than 50 and greater than 20
31+
if (num < 50 && num > 20) {
32+
return true;
33+
}
34+
return false;
2335
};
2436

2537
const isInteger = (num) => {
26-
// return true if num is an integer
27-
// 0.8 -> false
28-
// 1 -> true
29-
// -10 -> true
30-
// otherwise return false
31-
// hint: you can solve this using Math.floor
38+
if (Math.floor(num) === num) {
39+
return true;
40+
}
41+
return false;
3242
};
3343

3444
const fizzBuzz = (num) => {
35-
// if num is divisible by 3 return 'fizz'
36-
// if num is divisible by 5 return 'buzz'
37-
// if num is divisible by 3 & 5 return 'fizzbuzz'
38-
// otherwise return num
45+
if (num % 5 === 0 && num % 3 === 0) {
46+
return 'fizzbuzz';
47+
} else if (num % 5 === 0) {
48+
return 'buzz';
49+
} else if (num % 3 === 0) {
50+
return 'fizz';
51+
}
52+
return num;
3953
};
4054

4155
const isPrime = (num) => {
42-
// return true if num is prime.
43-
// otherwise return false
44-
// hint: a prime number is only evenly divisible by itself and 1
45-
// hint2: you can solve this using a for loop
46-
// note: 0 and 1 are NOT considered prime numbers
56+
if (num < 0) {
57+
return false;
58+
}
59+
if (num === 1 || num === 0) {
60+
return false;
61+
}
62+
for (let i = 2; i < num; i++) {
63+
if (num % i === 0) {
64+
return false;
65+
}
66+
}
67+
return true;
4768
};
4869

4970
const returnFirst = (arr) => {
50-
// return the first item from the array
71+
return arr[0];
5172
};
5273

5374
const returnLast = (arr) => {
54-
// return the last item of the array
75+
return arr[arr.length - 1];
5576
};
5677

5778
const getArrayLength = (arr) => {
58-
// return the length of the array
79+
return arr.length;
5980
};
6081

6182
const incrementByOne = (arr) => {
62-
// arr is an array of integers
63-
// increase each integer by one
64-
// return the array
83+
for (let i = 0; i < arr.length; i++) {
84+
arr[i]++;
85+
}
86+
return arr;
6587
};
6688

6789
const addItemToArray = (arr, item) => {
68-
// add the item to the end of the array
69-
// return the array
90+
arr.push(item);
91+
return arr;
7092
};
7193

7294
const addItemToFront = (arr, item) => {
73-
// add the item to the front of the array
74-
// return the array
75-
// hint: use the array method .unshift
95+
arr.unshift(item);
96+
return arr;
7697
};
7798

7899
const wordsToSentence = (words) => {
79-
// words is an array of strings
80-
// return a string that is all of the words concatenated together
81-
// spaces need to be between each word
82-
// example: ['Hello', 'world!'] -> 'Hello world!'
100+
let newSentence = '';
101+
for (let i = 0; i < words.length; i++) {
102+
if (i === 0) {
103+
newSentence += `${words[i]}`;
104+
} else {
105+
newSentence += ` ${words[i]}`;
106+
}
107+
}
108+
return newSentence;
83109
};
84110

85111
const contains = (arr, item) => {
86-
// check to see if item is inside of arr
87-
// return true if it is, otherwise return false
112+
let itemCounter = 0;
113+
for (let i = 0; i < arr.length; i++) {
114+
if (arr[i] === item) {
115+
itemCounter++;
116+
}
117+
}
118+
if (itemCounter > 0) {
119+
return true;
120+
}
121+
return false;
88122
};
89123

90124
const addNumbers = (numbers) => {
91-
// numbers is an array of integers.
92-
// add all of the integers and return the value
125+
let sumOfNumbers = 0;
126+
for (let i = 0; i < numbers.length; i++) {
127+
sumOfNumbers += numbers[i];
128+
}
129+
return sumOfNumbers;
93130
};
94131

95132
const averageTestScore = (testScores) => {
96-
// testScores is an array. Iterate over testScores and compute the average.
97-
// return the average
133+
let totalSumScores = 0;
134+
let numberOfScore = 0;
135+
for (let i = 0; i < testScores.length; i++) {
136+
totalSumScores += testScores[i];
137+
numberOfScore++;
138+
}
139+
return totalSumScores / numberOfScore;
98140
};
99141

100142
const largestNumber = (numbers) => {
101-
// numbers is an array of integers
102-
// return the largest integer
143+
let biggestInteger = 0;
144+
for (let i = 0; i < numbers.length; i++) {
145+
if (numbers[i] > biggestInteger) {
146+
biggestInteger = numbers[i];
147+
}
148+
}
149+
return biggestInteger;
103150
};
104151

105-
// Do not modify code below this line.
106-
// --------------------------------
107-
108152
module.exports = {
109153
getBiggest,
110154
greeting,

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