笑话和酶的 const 声明中缺少初始化程序

Question

我尝试测试反应本机组件，但出现此错误。

我意识到错误来自文件import Convertor, { ConvertorComponent } from '../components/Convertor.js中的声明convertor.test.js。export ConvertorComponent我用和导出了组件export default Convertor。

const warnedKeys: {[string]: boolean} = {};

SyntaxError: Missing initializer in const declaration

at ScriptTransformer.transformAndBuildScript (node_modules/@jest/transform/build/ScriptTransformer.js:471:17)
at ScriptTransformer.transform (node_modules/@jest/transform/build/ScriptTransformer.js:513:25)
at Object.<anonymous> (node_modules/react-native/Libraries/react-native/react-native-implementation.js:14:18)