Problem When you go to a react component, then go to another, and finally come back, the react component is showing blank, or half-blank. Investigation If you inspect the page with the mobile safari inspector , you can see the elements are there, but safari just refuse to show the data on the screen. In …
IOS Safari showing a blank page when coming back to a React Component Read More »
import * as someModule from “../SomeModule”; test(“xxx”, ()=>{ const mockedModule = someModule as jest.Mocked < typeof someModule > ; mockedModule.someFunction = jest.fn(); … //reference the mocked function expect(mockedModule.someFunction.mock.calls.length).toBe(1); });
Jetty is too smart. If there is any JVM option provided, Jetty will spawn a new JVM instance to do the real work, even if you don’t use “–exec” option in start.ini And jetty’s logback module introduces a JVM option. See here You will see: -Dorg.eclipse.jetty.util.log.class?=org.eclipse.jetty.util.log.Slf4jLog So does it matter? It matters a lot because …
Jetty’s start.jar forks a new JVM to run the app if logback module is enabled Read More »
File change monitoring doesn’t work, such as the auto-refresh of create-react-app Use the following before your "npm start" or put it on env file: CHOKIDAR_USEPOLLING=true And if you are using Intellij, you need to explicitly "ctrl + s" to save the changes on your code files Integrate beyond compare with git diff export TMPDIR=’/mnt/c/Users/yourName/AppData/Local/Temp’ alias …
Miscellaneous tips while developing in WSL (Windows Subsystem for Linux) Read More »
Some say you should use the jsx-global-plugin like “@global body{fontFamily:’someFont’}” , but it doesn’t work in my project. The global CSS still has the lower CSS speciality than MUI components’ CSS because this global CSS is using a type selector. You should use a theme instead //create a theme const myTheme = createMuiTheme({ typography: { …
Change the font family globally in Material-UI 3.x Read More »
compile ‘io.springfox:springfox-swagger2:2.9.2’ compile ‘io.springfox:springfox-swagger-ui:2.9.2’ /** See https://www.baeldung.com/swagger-2-documentation-for-spring-rest-api */ @Configuration @EnableSwagger2 public class SwaggerConfig { @Value(“${enable.swagger}”) //You may want to disabled it in PROD boolean enableSwagger; @Bean public Docket api() { Docket api = new Docket(DocumentationType.SWAGGER_2) .select() .apis(RequestHandlerSelectors.basePackage(“your.package”)) .paths(PathSelectors.any()) .build(); ApiInfo apiInfo = new ApiInfoBuilder() .version(“xxx”) .description(“xxx”) .termsOfServiceUrl(“xxx”) .title(“Xxx Doc”) .build(); api.useDefaultResponseMessages(false).apiInfo(apiInfo); api.enable(enableSwagger); return api; } …
You can use OpenPDF to draw a PDF (the open source fork of iText). However, the learning curve of creating PDF with layouts and stuff is very high. A more cost-effective solution is create an HTML version of it and convert it using Flying Saucer with its OpenPDF component . As a Java developer you …
You can get the type of the state from the root reducer // the reducer const appReducer = combineReducers({ global: globalStateReducer, example: exampleReducer }); type AppState = ReturnType<typeof appReducer> However the redux state can be cleared in some scenarios, so it should be undefinable //See https://stackoverflow.com/a/35641992/301447 for “undefined redux state” type RootState = AppState | …
You want the actions to be typed. You should use interface or class. Class is better than interface because in interfaces you cannot define the action "type" as a constant, but in classes you can: class LoadingStartedAction implements Action{ readonly type = LOADING_STARTED } However a class instance is not a plain object, but Redux …
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Read process output in Java without hanging the main thread Read More »