Function isUsernameCharacter

apps/web/ui/MessageForm/index.tsx:58–60

(character: string)

}

function isUsernameCharacter(character: string) {
  return !!character && /[a-zA-Z0-9\.]/.test(character);
}

function isMentionCharacter(character: string) {
  return character === '@' || character === '!';