Word Frequency Counter

import java.util.*;
class Solution {
    public Map<String, Integer> word_frequency_counter(String[] words) {
        Map<String, Integer> freq = new HashMap<>();
        for (String w : words) freq.put(w, freq.getOrDefault(w, 0) + 1);
        return freq;
    }
}

function word_frequency_counter(words) {
    const freq = {};
    for (let i = 0; i < words.length; i++) {
        const w = words[i];
        freq[w] = (freq[w] || 0) + 1;
    }
    return freq;
}

<?php
function word_frequency_counter($words) {
    $freq = [];
    foreach ($words as $w) {
        $freq[$w] = ($freq[$w] ?? 0) + 1;
    }
    return $freq;
}
?>

from typing import List, Dict

def word_frequency_counter(words: List[str]) -> Dict[str, int]:
    freq = {}
    for w in words:
        freq[w] = freq.get(w, 0) + 1
    return freq

use std::collections::HashMap;
fn word_frequency_counter(words: Vec<String>) -> HashMap<String, i32> {
    let mut freq: HashMap<String, i32> = HashMap::new();
    for w in words {
        *freq.entry(w).or_insert(0) += 1;
    }
    freq
}

function word_frequency_counter(words: string[]): { [key: string]: number } {
    var freq: { [key: string]: number } = {};
    for (var i = 0; i < words.length; i++) {
        var w = words[i];
        freq[w] = (freq[w] || 0) + 1;
    }
    return freq;
}