Is Subsequence

LeetCode題目: 392. Is Subsequence

My solution:

/**
 * @param {string} s
 * @param {string} t
 * @return {boolean}
 */
let isSubsequence = (s, t) => {
    let sPointer = 0, tPointer = 0;
    while(sPointer < s.length && tPointer < t.length) {
        if(s[sPointer] === t[tPointer]) sPointer++;
        tPointer++;
    }
    return sPointer === s.length;
}