In my react app I am tasked with sending multiple GET requests, sometimes with some optional filter params attached. Additionally I’m storing the params in my redux store so that they are able to stack on subsequent requests. Here’s the problem: There are times when I’ll clear the values of …
Tag: reactjs
What’s the purpose of the 3rd argument in useReducer?
From the docs: [init, the 3d argument] lets you extract the logic for calculating the initial state outside the reducer. This is also handy for resetting the state later in response to an action. And the code: Why would I do that over reusing a constant initialState? Looks less verbose to me. Answer EDIT july…
Animation always firing because state always changes on scroll in React
So I’m using React/Pose to animate a Showcase component like the Postmates fleet website seen here: I’m almost there but I can’t figure out the last bit. Basically, I have an array of items: And a handleScroll(e) method which does a few things: Detects when scrolling through the component Wh…
Checking text appears inside an element using react testing library
I’m writing some tests for a React app using Testing Library. I want to check that some text appears, but I need to check it appears in a particular place because I know it already appears somewhere else. The Testing Library documentation for queries says that the getByText query takes a container param…
Why use `useTable` over `ReactTable` when using react-table
On their npm page, the example shows the usage of <ReactTable> component: However, on their API Docs and examples, they all use useTable. So, my question is: Why would someone use hooks(useTable, useFilters, and etc…) and make Table component when he/she can just use a that’s already provide…
Using classnames to dynamically style component with CSS based on props value
I am creating a set of reusable components (wrapped material-ui) which are being styled using CSS. I need to set the width of the component dynamically via a prop passed into the custom button. I want to use classnames to merge the const root style defined for MyButton (I have stripped this back in the sandbo…
ReactJS/Semantic-UI DropDown MaxSelection
Well, I searched a lot but nothing found, I decided to solve it on my own but stuck in middle it. Let me explain first, There is an option for limit selection in Semantic-Ui but not in React version, here you can find maxSelections in Multiple Select Settings section, but there is no such option for reactjs v…
How to make connection to Dialogflow API in ReactJS (front-end)
I can’t seem to find a solution for this. I’m trying to make a connection to Dialogflow using ReactJS. So far I’ve tried it by making an Ajax call and using dialogflow.SessionsClient() with the credentials JSON file. I keep getting Authentication errors. Is there any example, because I can&#…
What is a react js the way to learn?
I was a Java developer for coding Android for 3 years But now I find that learning to React.Js brings me one step closer to world-class technology. I did a lot of research on its learning path . I realized that for React.js and React Native I had to learn the following sequence : 1-html 2-css 3-java script 4-…
How to Fix react cors error in localhost?
I’m working on a react app. Where I’m requesting for an API by AXIOS. But When I run NPM START to test my app in localhost I’m getting CORS error. Here is the error Access to XMLHttpRequest at ‘https://********.com/trx_status.php’ from origin ‘http://localhost:3000’ h…