LeetCode: Check If String Is a Prefix of Array Solution

Accumulated concatenation and check

Approach

On each concatenation of

words
, compare with
s

Implementation

1var isPrefixString = function (s, words) {
2 let res = false
3
4 words.reduce((acc, word) => {
5 acc += word
6 if (acc === s) res = true
7 return acc
8 }, "")
9
10 return res
11}

Comments

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Tags

leetcode

array

string

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