reversing an array in js

1var arr = [34, 234, 567, 4];
2print(arr);
3var new_arr = arr.reverse();
4print(new_arr);
5

1import React, { Component } from 'react';
2
3export default class Slideshows extends Component {
4    constructor(){
5        super();
6        this.state = {
7            data:[
8                { "id": "1", "name": 'Robert', "age": "21" },
9                { "id": "2", "name": 'Sam', "age": "33" },
10                { "id": "3", "name": 'Jerry', "age": "42" },
11            ]
12        }
13    }
14    render() {
15        const reverseData = this.state.map((data, i) => {
16            return (
17                <li> {data.name} | {data.age} </li>
18            )
19        })
20        return (
21            <ul>
22                {reverseData}
23            </ul>
24        )
25    }
26}
27

1const reverseArray = arr => arr.reduce((acc, val) =>  [val, ...acc], [])