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warmup10 min

Longest Common Prefix

Longest Common Prefix

Write longestCommonPrefix(strs) that returns the longest string that is a prefix of every string in the array. If there is no common prefix, return "".

longestCommonPrefix(["flower", "flow", "flight"]); // "fl"
longestCommonPrefix(["dog", "racecar", "car"]);    // ""

Run your code to see results.

Stuck? This challenge exercises:

javascript.data-structures