How to webpack a node_module for use in both React and ReactNative
I'm building out a library that will be used by both a React Native project and a React project as a node_module hosted on my github.This is proving quite daunting- and based on how ugly my code has...
View ArticleNested Tab Bar in stack with modal screen (React Navigation v5)
I am new to react native + js + ts so i have a big trouble righ now how to implement my navigation right. am using react-navigation v5 right now.I have Tab navigator with 3 screens 'Home', 'Discover',...
View ArticleStyling output of Object in Typescript react
I have an object output that looks like this: name: "James Charles" address: "<font face="Arial" size="2">10109 New York. Ste. C, New York NY</font>" phone: "784-247-7926" email:...
View ArticleHow to set up node module to export type information
I'm writing a node module that is the api layer for my react and react native app. I've gotten it to the point where typescript is exporting everything except for the type objects. As I understand it,...
View ArticleHow to test void functions using jest
I have a function that returns nothing. How can we write the jest test cases to verify this function? onSilentTrackReadyToPlay(callback: (trackState: string) => void): void {...
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When I save the code on VS code editor, auto change code format
I am coding on React Native. I downloaded the code from Git I will share my code Before saving After saving I already uninstalled all extensions Please help me Thanks
View ArticleCustom Alert in React Native / typescript
I need to create a custom alert in React Native, using typeScript. I have to customize the titles and buttons, but I'm not getting it.
View Articlewhat is the difference between AsyncStorage and OnSaveInstanceState android
I am looking for a way to save state between screen transitions and i found OnSaveInstanceState using native Android and AsyncStorage using React Native and im generally wondering what the difference...
View ArticleHow to create typings alias in typescript the way we create dependency alias...
TL;DR:How to create typing alias in typescript the way we create dependency alias in babelrc?The full question:Let's say I am developing for iOS and web, and would like to write only one set of code. I...
View ArticleCannot invoke an object which is possibly 'undefined'. using lodash.memoize
I'm using an example from react-native-localize and I want to support Typescript but I'm getting this error from line 36 translate.cache.clear(); the code works but I don't know how to convert memoize...
View ArticleWhy am I getting ReferenceError: React is not defined?
I have a React Native application. I want to add unit tests with Jest. When I run yarn test, I get the following error:FAIL ./App.test.tsx ● app › can render snapshot ReferenceError: React is not...
View ArticleConverting fingerprint.react-native from cuid to Typescript
The implementation in the cuid NPM library is:import { pad } from './pad' var globalCount = Object.keys(global); var clientId = pad(globalCount.toString(36), 4); module.exports = function fingerprint...
View ArticleUpdating an array in SharePoint spfx using React & PnPJS
I'm creating a web app that allows the user to update their status and location.I have a data list table on SharePoint with the user's name, email address, status (for example: online, offline, or...
View ArticleDropdown/Select Value Not Changing - useState
My dropdown menu (Material UI select) says "Search By" and then we click on it, it gives a list. When I select on of the options, I want to store the option and change the "Searchh By" to the selected...
View ArticleReact native not recognizing finally
Finally keyword is undefined on a classic es6 helloworld fetch example.let isLoading = true; fetch("https://jsfiddle.net").then(function(response) { var contentType =...
View ArticleHow to get value of AnimatedInterpolation
My question is how to retrieve the value of an AnimatedInterpolation in react-native, without calling private code.I create the animated value and wrap it in an interpolation like this: animated = new...
View ArticleTypescript StackNavigatonProps and Screen props in react-navigation v5
What is the best way to define type for screen's navigation prop, when screen is in different file that router? Let's say I have one file, in which I define routes://Router.tsx type RootStackParamList...
View ArticleAre there scripts or tools to help to migrate Flow to TypeScript automatically?
I have an old react-native module using Flow. There are several thousand lines of code. Now, I would like to migrate these codes to a new project using TypeScript. I am looking for an auto-tool to help...
View ArticleHow to test react navigation authentication flow?
I'm developing a React Native application. I'm doing something like what's explained here to implement the authentication flow. So, I created an AppContainer that looks like this:import...
View ArticleProblems with scroll and flat-list. Loosing the position at the selected...
I have a flatList with expandable content. When i open 1 big content and scroll into the bottom of the list and open another the scroll are going to the bottom of the page and hidde my list. I need to...
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