├── README.md
├── algorithms
└── js.md
├── cheatsheet
└── bash.md
├── interview
├── css.md
├── general.md
├── html.md
└── js.md
└── projects
└── weather
├── index.html
├── readme.md
├── scripts.js
└── styles.css
/README.md:
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1 | # cheat
2 | :memo: cheatsheet for frontend, coding, and interview questions
3 |
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/algorithms/js.md:
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1 | # JS Algorithms
2 |
3 |
4 | ### String
5 |
6 | Reverse a string:
7 | ```js
8 | function reverse(str) {
9 | return str.split("").reverse().join("");
10 | }
11 | ```
12 |
13 | Find longest word:
14 | ```js
15 | function findLongestWord(str) {
16 | var words = str.split(" ");
17 | str = words.sort(function(a, b) {
18 | return b.length - a.length;
19 | })[0];
20 | return str;
21 | }
22 | ```
23 |
24 | ### Numbers
25 |
26 | Factorialize:
27 | ```js
28 | function factorialize(num) {
29 | if(num === 0) return 1;
30 | return num * factorialize(num-1);
31 | }
32 | ```
33 |
34 | FizzBuzz:
35 | ```js
36 | for(var i = 0; i <= 100; i++) {
37 | var f = i % 3 == 0, b = i % 5 == 0, fb = f && b
38 | console.log(f ? "Fizz" : b ? "Buzz" : fb ? "FizzBuzz" : i)
39 | }
40 | ```
41 |
42 | ### Sorting
43 |
44 | Bubble Sort:
45 | ```js
46 | function bub(arr) {
47 | for (var j = 0; j < arr.length; j++) {
48 | for (var i = 0; i < (arr.length - j); i++) {
49 | if (arr[i] > arr[i + 1]) {
50 | var a = arr[i]
51 | var b = arr[i + 1]
52 | arr[i] = b
53 | arr[i + 1] = a
54 | }
55 | }
56 | }
57 | return arr;
58 | }
59 | ```
60 |
61 | Quicksort:
62 | ```js
63 | var quick = function(arr, condition) {
64 | if(arr.length < 2) {
65 | return arr;
66 | };
67 | var pivot = arr[Math.floor(Math.random()*arr.length)];
68 | var left = [];
69 | var equal = [];
70 | var right = [];
71 | for(var i = 0; i < arr.length; i++) {
72 | var item = arr[i];
73 | var sortable = condition(item, pivot);
74 | if(item === pivot) {
75 | equal.push(item)
76 | } else if(sortable) {
77 | left.push(item);
78 | } else {
79 | right.push(item);
80 | }
81 | }
82 | return quick(left, condition).concat(equal, quick(right, condition));
83 | }
84 | ```
85 |
86 | Native JS Sort:
87 | ```js
88 | var arr = [454, 664,224, 675, 4]
89 | arr.sort(function(a, b) {
90 | return a - b;
91 | });
92 | ```
93 |
94 | ### Search
95 |
96 | Binary Search
97 | ```js
98 | var binarySearch = function(query, arr) {
99 | var start = 0;
100 | var end = arr.length - 1;
101 | while(start <= end) {
102 | var index = Math.round((start + end) / 2);
103 | var item = arr[index];
104 | if(query === item) {
105 | return index;
106 | } else if(query > item) {
107 | start = index + 1;
108 | } else {
109 | end = index - 1;
110 | }
111 | }
112 | return null;
113 | }
114 | binarySearch(3, [1, 2, 3, 4, 5]);
115 | // => 2
116 | ```
117 |
118 | ### Other
119 |
120 | Check if "robot" has gone a circle, given a list of directions:
121 |
122 | ```js
123 | function circle(directions) {
124 | directions = directions.split("");
125 | var x = 0,
126 | y = 0,
127 | ox = 0,
128 | oy = 0,
129 | it = 0,
130 | forv = "F";
131 | document.write("DIRECTIONS: " + directions + "
13 | Made with ♡ By Kabir
14 |
15 |
16 |
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/projects/weather/readme.md:
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1 | # Weather
2 |
3 | Make a weather application with an API.
4 |
5 | You should be able to:
6 |
7 | * Detect User's Location
8 | * Show user the temperature in F & C.
9 | * Change icons or backgrounds depending on weather.
10 |
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/projects/weather/scripts.js:
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1 | var weather = {};
2 | var tempEl = document.getElementById("temp"),
3 | cityEl = document.getElementById("city"),
4 | countryEl = document.getElementById("country"),
5 | iconEl = document.getElementById("icon"),
6 | unitEl = document.getElementById("unit")
7 | var units = "imperial";
8 | var unitAbb = "°F";
9 | var icons = {
10 | 'Rain': {
11 | 'icon': '