Word & Character Counter

const text = "The quick brown fox. It jumped over the lazy dog!";

const words = text.trim() ? text.trim().split(/\s+/).length : 0;
const chars = [...text].length;              // by code point, not UTF-16 unit
const charsNoSpace = [...text.replace(/\s/g, "")].length;
const sentences = (text.match(/[^.!?]+[.!?]+(\s|$)/g) || []).length;

console.log({ words, chars, charsNoSpace, sentences });

// "abc".length is 3, but "👍".length is 2 and [..."👍"].length is 1.
// Use the spread form whenever an emoji might show up.

<?php
$text = "The quick brown fox. It jumped over the lazy dog!";

echo str_word_count($text), PHP_EOL;          // ASCII only
echo count(preg_split('/\s+/u', trim($text))), PHP_EOL;  // Unicode safe

echo mb_strlen($text, 'UTF-8'), PHP_EOL;      // characters
echo strlen($text), PHP_EOL;                  // bytes, not the same thing

// Word frequency, ignoring case
$counts = array_count_values(
    array_map('mb_strtolower', preg_split('/\W+/u', $text, -1, PREG_SPLIT_NO_EMPTY))
);
arsort($counts);
print_r(array_slice($counts, 0, 5, true));

from collections import Counter
import re

text = "The quick brown fox. It jumped over the lazy dog!"

words = text.split()
print(len(words))                 # words
print(len(text))                  # characters (Python 3 counts code points)
print(len(text.replace(" ", "")))

sentences = [s for s in re.split(r"[.!?]+", text) if s.strip()]
print(len(sentences))

common = Counter(w.lower().strip(".,!?") for w in words)
print(common.most_common(5))

# Reading time, at 200 words per minute
print(-(-len(words) // 200), "min")