这是我的错误代码:FAILbuild/__test__/FuncOps.CheckFunctionExistenceByString.test.js●expect(CheckFunctionExistenceByStr('anystring','FunctionThatDoesNotExistsInString')).toThrow();FunctionFunctionThatDoesNotExistsInStringdoesnotexistsinstring.atCheckFunctionExistenceByStr(build/FuncOps.js:35:15)atObject.(