(character: string)
| 57 | }; |
| 58 | |
| 59 | function isLetter(character: string): boolean { |
| 60 | return character.toLowerCase() !== character.toUpperCase(); |
| 61 | } |
| 62 | |
| 63 | export function getLetter(text: string): string { |
| 64 | const character = text.trim().slice(0, 1).toLowerCase(); |