Number of Valid Words in a Sentence LeetCode solution in JavaScript

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/**
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 * @param {string} sentence
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 * @return {number}
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 */
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var countValidWords = function (sentence) {
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  let list = sentence.split(" ");
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  let filtered = list.filter((s) => {
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    if (/\d/.test(s) || s === "") return false; //removes anything with numbers or is blank
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    if (/^[!,.]$/.test(s)) return true; //punctuation only
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    if (/^\w+[!,.]?$/.test(s)) return true; //word + optional punctuation
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    if (/^\w+[-]?\w+[!,.]?$/.test(s)) return true; //word + optional hypen + word + optional punctuation
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    return false;
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  });
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  return filtered.length;
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};