#1935 - Maximum Number of Words You Can Type

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Problem Description

There is a malfunctioning keyboard where some letter keys do not work.

All other keys on the keyboard work properly.

Given a string text of words separated by a single space (no leading or trailing spaces) and a string brokenLetters of all distinct letter keys that are broken, return the number of words in text you can fully type using this keyboard.

Solution

/**
 * @param {string} text
 * @param {string} brokenLetters
 * @return {number}
 */
var canBeTypedWords = function(text, brokenLetters) {
  return text
    .split(/\s+/)
    .filter(word => !brokenLetters.split('').some(s => word.includes(s)))
    .length;
};