[Algorithm] 32 week(9.05 ~ 9.11) 2/3

392. Is Subsequence

var isSubsequence = function(s, t) {
    let subsequence = "";
    let i = 0;
    
    while(i < t.length){
        if(t[i] === s[subsequence.length]) {
            subsequence += t[i]
        }
        i++;
    }
    
    return subsequence === s    
};