React Filter Array
import { useState } from "react"
2
3let numbers = [64, 84, 22, 32, 83, 65, 51, 26, 23, 56]
4function App() {
5 const [filteredNumbers, setFilteredNumbers] = useState(numbers)
6
7 const radioChangeHandler = e => {
8 const value = e.target.value
9 if (value === "even") {
10 setFilteredNumbers(
11 numbers.filter(number => {
12 if (number % 2 === 0) {
13 return true
14 }
15 return false
16 })
17 )
18 } else {
19 setFilteredNumbers(
20 numbers.filter(number => {
21 if (number % 2 !== 0) {
22 return true
23 }
24 return false
25 })
26 )
27 }
28 }
29
30 return (
31 <div className="App">
32 <h2>Number filtering</h2>
33 <input
34 type="radio"
35 name="evenOrOdd"
36 id="even"
37 value="even"
38 onChange={radioChangeHandler}
39 />
40 <label htmlFor="even">Even</label>
41 <input
42 type="radio"
43 name="evenOrOdd"
44 id="odd"
45 value="odd"
46 onChange={radioChangeHandler}
47 />
48 <label htmlFor="odd">Odd</label>
49 <ul>
50 {filteredNumbers.map(number => {
51 return <li key={number}>{number} </li>
52 })}
53 </ul>
54 </div>
55 )
56}
57
58export default App
Akmal
