pluralize.ts

export class Inflector {
  static pluralize(word: string): string {
    if (!word) {
      return;
    }
    const isPluralAlready = word.endsWith('ies') || word.endsWith('es') || (!word.endsWith('us') && word.endsWith('s'));
    if (isPluralAlready) {
      return word;
    }
    if (word.endsWith('y') && !word.endsWith('ay')) {
      return `${word.substring(0, word.length - 1)}ies`;
    }
    return word.endsWith('us') ? `${word}es` : `${word}s`;
  }
}

const isPluralAlready = word.endsWith('s') && !word.endsWith('us')

const isPluralAlready = word.endsWith('s') && !word.endsWith('us')

Thank you 😊