one line solution - Javascript | Easy
\n\n# Complexity\n- Time complexity: O(n)\n Add your time complexity here, e.g. O(n) \n\n- Space complexity: O(n)\n Add your space complexity here, e.g. O(n) \n
\n\n# Complexity\n- Time complexity: O(n)\n<!-- Add your time complexity here, e.g. $$O(n)$$ -->\n\n- Space complexity: O(n)\n<!-- Add your space complexity here, e.g. $$O(n)$$ -->\n\n# Code\n```\n/**\n * @param {string[]} words\n * @param {string} s\n * @return {boolean}\n */\nvar isAcronym = function (words, s) {\n  return s === words.map((str) => str[0]).join("")\n}\n```
['JavaScript']