Answers for "check if a value is not an alphabetical letter javascript"

checking if a character is an alphabet in js

function isLetter(str) {
  return str.length === 1 && str.match(/[a-z]/i);
}

Posted by: Guest on May-15-2020

check if something is a letter in js

string.charAt(1).toUpperCase() !== string.charAt(1).toLowerCase()

Posted by: Guest on December-10-2020

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