How should I practice Longest Common Prefix?

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Longest Common Prefix

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Problem statement

Given a nonempty array of strings words, return the longest string that is a prefix of every word.

If the words share no nonempty prefix, return the empty string.

Function

longestCommonPrefix(words: String[]) → String

Examples

Example 1

words = ["flower","flow","flight"]return = "fl"

Every word starts with fl, and the next characters differ.

Example 2

words = ["dog","racecar","car"]return = ""

The first characters do not match.

Constraints

1 <= words.length <= 10000.
0 <= words[i].length <= 1000.
Every word contains lowercase English letters.
The total number of characters is at most 100000.

Source note: Author-written prompt excerpt retained for source fidelity.