Method isFunction

packages/webpack-cli/src/webpack-cli.ts:580–582

(value: unknown)

  }

  isFunction(value: unknown): value is CallableFunction {
    return typeof value === "function";
  }

  capitalizeFirstLetter(str: string): string {
    return str.length > 0 ? str.charAt(0).toUpperCase() + str.slice(1) : str;