https://leetcode.com/problems/reverse-prefix-of-word/?envType=daily-question&envId=2024-05-01
/**
* @param {string} word
* @param {character} ch
* @return {string}
*/
var reversePrefix = function (word, ch) {
if (word.indexOf(ch) === –1) return word
* @param {string} word
* @param {character} ch
* @return {string}
*/
var reversePrefix = function (word, ch) {
if (word.indexOf(ch) === –1) return word
word = word.split(”)
let idx = word.indexOf(ch)
let reverse = word.splice(0, idx + 1)
reverse.reverse()
let newWord = reverse.concat(word)
return newWord.join(”)
};
