-
Notifications
You must be signed in to change notification settings - Fork 0
/
index.html
127 lines (100 loc) · 4.75 KB
/
index.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Array Cardio 💪</title>
<link rel="icon" type="image/png" href="./cardio.png">
</head>
<body>
<p><em>Psst: have a look at the JavaScript Console</em> 💁</p>
<script>
// Get your shorts on - this is an array workout!
// ## Array Cardio Day 1
// Some data we can work with
const inventors = [
{ first: 'Albert', last: 'Einstein', year: 1879, passed: 1955 },
{ first: 'Isaac', last: 'Newton', year: 1643, passed: 1727 },
{ first: 'Galileo', last: 'Galilei', year: 1564, passed: 1642 },
{ first: 'Marie', last: 'Curie', year: 1867, passed: 1934 },
{ first: 'Johannes', last: 'Kepler', year: 1571, passed: 1630 },
{ first: 'Nicolaus', last: 'Copernicus', year: 1473, passed: 1543 },
{ first: 'Max', last: 'Planck', year: 1858, passed: 1947 },
{ first: 'Katherine', last: 'Blodgett', year: 1898, passed: 1979 },
{ first: 'Ada', last: 'Lovelace', year: 1815, passed: 1852 },
{ first: 'Sarah E.', last: 'Goode', year: 1855, passed: 1905 },
{ first: 'Lise', last: 'Meitner', year: 1878, passed: 1968 },
{ first: 'Hanna', last: 'Hammarström', year: 1829, passed: 1909 }
];
const people = ['Beck, Glenn', 'Becker, Carl', 'Beckett, Samuel', 'Beddoes, Mick', 'Beecher, Henry', 'Beethoven, Ludwig', 'Begin, Menachem', 'Belloc, Hilaire', 'Bellow, Saul', 'Benchley, Robert', 'Benenson, Peter', 'Ben-Gurion, David', 'Benjamin, Walter', 'Benn, Tony', 'Bennington, Chester', 'Benson, Leana', 'Bent, Silas', 'Bentsen, Lloyd', 'Berger, Ric', 'Bergman, Ingmar', 'Berio, Luciano', 'Berle, Milton', 'Berlin, Irving', 'Berne, Eric', 'Bernhard, Sandra', 'Berra, Yogi', 'Berry, Halle', 'Berry, Wendell', 'Bethea, Erin', 'Bevan, Aneurin', 'Bevel, Ken', 'Biden, Joseph', 'Bierce, Ambrose', 'Biko, Steve', 'Billings, Josh', 'Biondo, Frank', 'Birrell, Augustine', 'Black, Elk', 'Blair, Robert', 'Blair, Tony', 'Blake, William'];
// Array.prototype.filter()
// 1. Filter the list of inventors for those who were born in the 1500's
//Long option
// const fifteen = inventors.filter(function (inventor) {
// if (inventor.year >= 1500 && inventor.year < 1600) return true
// })
//Short option
const fifteen = inventors.filter(inventor => (
inventor.year >= 1500 && inventor.year < 1600
))
console.table(fifteen);
// Array.prototype.map()
// 2. Give us an array of the inventors first and last names
const fullName = inventors.map(inventor => `${inventor.first} ${inventor.last}`)
console.log(fullName);
// Array.prototype.sort()
// 3. Sort the inventors by birthdate, oldest to youngest
//Long option
// const birthdayOrdered = inventors.sort(function (firstInventor, secondInventor) {
// if (firstInventor.year > secondInventor.year) {
// return 1
// } else {
// return -1
// }
// })
//Short option
const birthdayOrdered = inventors.sort((firstInventor, secondInventor) =>
firstInventor.year > secondInventor.year ? (1) : (-1))
console.table(birthdayOrdered);
// Array.prototype.reduce()
// 4. How many years did all the inventors live all together?
const totalYears = inventors.reduce((total, inventor) => {
return total + (inventor.passed - inventor.year)
}, 0)
console.log(totalYears);
// 5. Sort the inventors by years lived
const oldest = inventors.sort(function (a, b) {
const lastGuy = a.passed - a.year
const nextGuy = b.passed - b.year
return lastGuy > nextGuy ? (-1) : (1)
})
console.table(oldest);
// 6. create a list of Boulevards in Paris that contain 'de' anywhere in the name
// https://en.wikipedia.org/wiki/Category:Boulevards_in_Paris
// copy the following code on DevTools console to make it work
// const category = document.querySelector('.mw-category')
// const links = Array.from(category.querySelectorAll('a'))
// const de = links
// .map(link => link.textContent)
// .filter(streetName => streetName.includes('de'))
// 7. sort Exercise
// Sort the people alphabetically by last name
const orderName = people.sort((lastOne, nextOne) => {
const [aLast, aFirst] = lastOne.split(', ')
const [bLast, bFirst] = nextOne.split(', ')
return aLast > bLast ? 1 : -1
})
console.log(orderName);
// 8. Reduce Exercise
// Sum up the instances of each of these
const data = ['car', 'car', 'truck', 'truck', 'bike', 'walk', 'car', 'van', 'bike', 'walk', 'car', 'van', 'car', 'truck'];
const transportation = data.reduce((obj, item) => {
if (!obj[item]) {
obj[item] = 0
}
obj[item]++
return obj
}, {})
console.log(transportation);
</script>
</body>
</html>