Method isMultipleCompiler

packages/webpack-cli/src/webpack-cli.ts:1268–1270

(compiler: Compiler | MultiCompiler)

  }

  isMultipleCompiler(compiler: Compiler | MultiCompiler): compiler is MultiCompiler {
    return (compiler as MultiCompiler).compilers as unknown as boolean;
  }

  isValidationError(error: unknown): error is WebpackError {
    return (error as Error).name === "ValidationError";