I am trying to count the number of sentences in an array using the .forEach iterator on an array. Each time there is a full stop ('.') or an exclamation mark ('!'), it should increment a counter by 1. I was wondering if it was possible to do this using a Javascript iterator.
The array I am filtering through is called betterWords.
The code below returns 0 for some reason and I'm not sure why.
let sentences = 0;
betterWords.forEach(word => {
if (word === '.' || word === '!') {
return sentences+=1
}
});
console.log(sentences)
I gather that the OP aims to count sentences in a string by counting sentence-terminating punctuation marks like . ! ? (did I miss any?) A regex match will do it. Just count the matches.
const countPunctuation = string => {
return (string.match(/[.!?]/g) || []).length
}
console.log(countPunctuation("This is a sentence. This is definitely a sentence! Is this a sentence?"))Your solution was almost correct:
const betterWords = "Hello World! This is a nice text. Awesome!"
let sentences = 0;
betterWords.split('').forEach(word => {
if (word === '.' || word === '!') {
return sentences += 1
}
});
console.log(sentences)You can not run .forEach on strings. You can only do this on Arrays. With split('') you can transform your string to an array. "ABC" => ["A", "B", "C"]
Using Regex like @danh did is a faster way to solve this problem.