Write a function to find the longest common prefix string amongst an array of strings!

longestCommonPrefix.js

/**
 * @param {string[]} strs
 * @return {string}
 * https://underdash.web.app
 * https://leetcode.com/problems/longest-common-prefix/
 * https://underdash.medium.com/spiral-matrix-javascript-c8aa2bd957e
 *
 * Copyright reserved by Taha Shieenavaz (Underdash)
 */

const longestCommonPrefix = strs => {
    let prefix = ""
    let minLength = strs[0].length
    let minIndex = 0
    let currentChar = null
    let equalForAll = true
    
    for( let i = 1; i < strs.length ; i++ ) {
        if( strs[i].length < minLength ) {
            minLength = strs[i].length
            minIndex = i            
        }
    }
    
    for( let i = 0; i < minLength; i++) {
        currentChar = strs[minIndex][i]
        equalForAll = true
        for( let j = 0; j < strs.length; j++ ) {
            if( strs[j][i] != currentChar ) {
                equalForAll = false
                break                
            }
        }
        if( equalForAll )
            prefix += currentChar
        else
            break
    }
    
    return prefix
};