function for reversing a string in javascript code example

Example 1: javascript string reverse

"this is a test string".split("").reverse().join("");
//"gnirts tset a si siht"

// Or
const reverse = str => [...str].reverse().join('');

// Or
const reverse = str => str.split('').reduce((rev, char)=> `${char}${rev}`, '');

// Or
const reverse = str => (str === '') ? '' : `${reverse(str.substr(1))}${str.charAt(0)}`;

// Example
reverse('hello world');     // 'dlrow olleh'

Example 2: reverse string in typescript

let toBeReversed: string = `.eslaf eb t'ndluow ecnetnes siht ,dehctiws erew eslaf dna eurt fo sgninaem eht fI`;

let charArray: string[] = toBeReversed.split('');
console.log(charArray);

let reverseArray: string[] = charArray.reverse();
console.log(reverseArray);

let reversedArray: string = reverseArray.join('');
console.log(reversedArray);

output:

If the meanings of true and false were switched, this sentence wouldn't be false.