How can I render Alarm item in FlatList with typescript?
I'm making a FlatList rendering Alarm items. (react-native-simple-alarm)the tsx file where my FlatList isconst [alarms, setAlarms] = useState<AlarmType[]>([]);...const renderItem:...
View ArticleReact Native SyntaxError in node_modules/react-native/index.js: Unexpected...
I have initialized a react-native-project and converted it to use TypeScript. I also setup the project to compile to web, android, and ios. Webpack was installed to launch the web version. I got...
View ArticleGet random element array and delete it
I made a little QuizApp with react-native typescript and a nestjs backend and a mysql database. But I don't want to have repeated Questions. My idea here is i want to get the whole questionlist here in...
View ArticleLoad array out of db once, then get a random number and get a element with...
I made a little QuizApp with react-native typescript and a nestjs backend and a mysql database. But I don't want to have repeated Questions. My idea here is i want to get the whole questionlist here in...
View ArticleHow to simplify an error callback in react
I have a parent component that handles an error callback from its child components however in keeping with do not repeat yourself there seems to be a lot of repitition in my code id like to eliminate....
View ArticleHow can I remove one element of an array by ID?
How do i remove questionList[num] of questionList? In this way I'm getting the 1 Element I don't want to have anymore.const [questionList, setQuestionList] = useState<{question: string, id:...
View ArticleSlide images from FlatList like Tiktok slide - React Native
I have one screen where I listed all images, when I click on one image its navigate to other screen where I want to implement TikTok slider and list all images from previous screen.Code from first...
View ArticleFill array out of API and delete elements out of an array and then executing...
I made a little QuizApp with react-native typescript and a nestjs backend and a mysql database. But I don't want to have repeated Questions. My idea here is i want to get the whole questionlist here in...
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How to change colour of selected icon in the BottomNavigation component of...
I have the next page that uses BottomNavigation:import React from 'react'import { BottomNavigation, DefaultTheme, Provider as PaperProvider,} from 'react-native-paper'import ChatScreen from...
View ArticleUnhandled promise rejection because value isn't there
I made a little QuizApp in which I'm getting the Questions and Answers per API out of a mysql database. What my problem with this code is that right now he is not waiting for qId. qId is undefined so...
View ArticleGo to a new page on button click (React Hooks Typescript)
My main page has a button that when on click I want it to show a new page.I have right now my index page (index.tsx) and the page that I want to show on click (new.tsx) but I don't know how to "call"...
View ArticleSpread operator while using a react props interface with TypeScript
I have this AppText component where I want to use a Props interface while having the ability to accept other props fields that I can consume with a spread operator. Here is my attempt...
View ArticleTypescript optional chaining error: Expression expected.ts(1109)
I am trying to do optional chaining in Typescript + React Native.Let's say I have the following interfaces:interface Bar { y: number}interface Foo { x?: Bar}and I try to run the following: const test:...
View ArticleHow can I custom react components with TS Generics?
I want to create a custom component with generics. But how I do it ?Blogs.tsximport { useNavigation } from '@react-navigation/native';import { NativeStackScreenProps } from...
View ArticleRender multiple pages in a single component
Currently, I have 1 component for 1 route. Like:'/report/:whatTheReportIsOn' -> ReportComponent'/report/:whatTheReportIsOn/info' -> ReportInfoComponent'...'But the page and switching through tabs...
View Articlewhy generic type arrow function shows error?
Why this is not working ?const List: <ListItem> = ({ items, render }: { items: ListItem[], render: (item: ListItem) => React.ReactNode}) => { return (<View> { items.map((el, i) =>...
View ArticleCannot redeclare block-scoped variable 'HermesInternal'
So I am using FlatList in react native, however, I cannot display the data out with flatlist, and the node module turns out to have this error.FlatList usage:<FlatList style={{ height: "100%" }}...
View ArticleReferenceError: Can't find variable: TextEncoder
I'm using VSCode/Typescript React 3.4.3 for a React Native project and I'm having troubles at runtime with TextEncoderThe ts code:...var encoder = new TextEncoder();var b: Uint8Array =...
View ArticleCannot find name "T" Typescript
Why I get this error message:Cannot find name "T"Code:const List: React.FC<T> = ({ items, render }: { items: T[]; render: (item: T) => React.ReactNode;}) => { return (<View> {...
View ArticleJest Node modules are not being mocked as stated by the Jest documented
I want to mock a simple component library react-native-indicators with Jest. As the Jest documentation states:Mocking Node modulesIf the module you are mocking is a Node module (e.g.: lodash), the mock...
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