21 |
33 |
22 |
29 | {postContent}
30 |
31 |
32 |
6 | //strings
7 | const names = ["Seema", "Rekha", "Jaya"];
8 | names.sort();
9 | //['Jaya', 'Rekha', 'Seema' ]
10 |
11 | //Numbers
12 | const numbers = [101, 8, 87];
13 | numbers.sort((a, b) => {
14 | return a - b;
15 | });
16 | //[ 8, 87, 101 ]
17 |
18 |
19 | 2. Select a random element
20 |
21 |
22 | const items = ["Ball", "Bat", "Cup"]
23 | const randomIndex = Math.floor(Math.random()*items.length)
24 | items[randomIndex]
25 |
26 |
27 | 3. Reverse a string
28 |
29 |
30 | function reverseString(string) {
31 | return string.split(" ").reverse().join(" ")
32 | }
33 |
34 | revereseString("Random String")
35 |
36 |
37 | 4. Check if element has a class
38 |
39 |
40 | const element = document.querySelector("#element")
41 | element.classList.contains("active")
42 |
43 |
44 | 5. String interpolation
45 |
46 |
47 | const name = "Jaya"
48 | console.log(`Hi, ${name}. You have ${2 ** 3} new notifications.`}
49 | //Hi, Jaya. You have 8 new notifications.
50 |
51 |
52 | 6. Loop through an array
53 |
54 |
55 | const cars = ["Ford", "BMW", "Audi" ]
56 | for (let car of cars) {
57 | console.log(car)
58 | }
59 |
60 | /*
61 | Ford
62 | BMW
63 | Audi
64 | */
65 |
66 |
67 | 7. Get current time
68 |
69 |
70 | const date = new Date()
71 | const currentTime =
72 | `${date.getHours()}:${date.getMintues()}:${date.getSeconds()}`
73 |
74 | console.log(currentTimes)
75 | //example output: "22:16:41"
76 |
77 |
78 | 8. Replace part of a string
79 |
80 |
81 | const string = "You are awesome."
82 | const replacedString = string.replace("You", "We")
83 |
84 | console.log(replacedString) //Output: "We are awesome"
85 |
86 |
87 | 9. Destructing variable assignment
88 |
89 |
90 | let profile = ['bob', 34, 'carpenter'];
91 | let [name, age, job] = profile;
92 | console.log(name);
93 | // bob
94 |
95 |
96 | 10. Using the spread operator
97 |
98 |
99 | let data = [1,2,3,4,5];
100 | console.log(...data);
101 | // 1 2 3 4 5
102 | let data2 = [6,7,8,9,10];
103 | let combined = [...data, ...data2];
104 | console.log(...combined);
105 | // 1 2 3 4 5 6 7 8 9 10
106 | console.log(Math.max(...combined));
107 | // 10
108 |
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