Reverse Words in a String

main.md

Question

Approach

1. The string us turned into an array.
2. All the spaces in the array are removed in a loop.
3. The words are the added into an array from the last to the first so that its in a reversed order.
4. I use the join operator to add words together with single spaces

Complexity

• Time complexity: O(N)

• Space complexity: O(N)

Code

function reverseWords(s: string): string {
    let strings = s.split(" ")
    let reversedWords = []
    let i = 0;
    while (i <strings.length) {
        let letters = strings[i]
        if (letters.length !== 0) {
            reversedWords.unshift(strings[i])
        }
        i++
    }
    return reversedWords.join(" ")
};