I am learning and practicing hooks useState in react js. For example, when declaring a state variable like this, const [votes, setVotes] = useState(0) I know that the 0 value in useState() means that votes is initialized with starting value…
The following TypeScript type: type Errors = ({ err1: false; } | { err1: true; msg1: string; }) & ({ err2: false; } | { err2: true; msg2: string; }) Which is basically a intersection of two discriminated unions, works…
I am building a React Native app that uses Formik. When I submit the form I call handleSubmit <Formik onSubmit={values => { handleSubmit(values) }}> I define this before the return on my form: const handleSubmit = (values) => { const…
I have a component in my react native app that loads sessions related to a particular individual. In the useEffect() of that component I both load the sessions when the component comes into focus, and unload those sessions within the…
I want that the data at the index 1 and 2 are hiding and all data are show on the screen except these two data. I am using the map function for show data on the screen and my data…
App.js import React from 'react'; import { SafeAreaView, View, FlatList, StyleSheet, Text, StatusBar, } from 'react-native'; const DATA = [ { id: '1', title: 'First Item', }, { id: '1', title: 'First Item', }, { id: '1', title: 'First Item',…
i have rendered 10 views by using flatlist 1st i want to show the details by incresing the height when a user click on view no 6 and decrease height when user again click on it i have done it…
I'm new to React and am working on a simple receipt scanning web app based on AWS (Amplify, AppSync, GraphQL, DynamoDB, S3). I'm using the useEffect hook to fetch data for the user currently logged in, via a GraphQL call,…
React-native noob here, I have 2 screens. Users fill in their name on a screen called InputName and then when they click a button they go to HomeScreen and should see their name on that screen. I am using React…
I want this output: if I click the "A" alphabet header then "A" alphabet data only hide if I click the "A" alphabet header then the "A" alphabet data only show if I click the "B" alphabet header then the "B"…