Find Common Characters

package main

func commonChars(words []string) []string {
	common := [26]int{}
	for index := range common {
		common[index] = 101
	}
	for _, word := range words {
		count := [26]int{}
		for _, character := range word {
			count[character-'a']++
		}
		for index := range common {
			if count[index] < common[index] {
				common[index] = count[index]
			}
		}
	}
	result := []string{}
	for index, count := range common {
		for used := 0; used < count; used++ {
			result = append(result, string(rune('a'+index)))
		}
	}
	return result
}

from collections import Counter


class Solution:
    def commonChars(self, words: list[str]) -> list[str]:
        common = Counter(words[class="syntax-number">0])
        for word in words[class="syntax-number">1:]: common &= Counter(word)
        return list(common.elements())

function commonChars(words: string[]): string[] {
  const common = new Array<number>(class="syntax-number">26).fill(Number.POSITIVE_INFINITY);
  for (const word of words) { const count = new Array<number>(class="syntax-number">26).fill(class="syntax-number">0); for (const character of word) count[character.charCodeAt(class="syntax-number">0) - class="syntax-number">97] += class="syntax-number">1; for (let index = class="syntax-number">0; index < class="syntax-number">26; index += class="syntax-number">1) common[index] = Math.min(common[index], count[index]); }
  const result: string[] = []; common.forEach((count, index) => { for (let used = class="syntax-number">0; used < count; used += class="syntax-number">1) result.push(String.fromCharCode(class="syntax-number">97 + index)); }); return result;
}