I'm new to React and have been developing a personal proyect using the fat arrow syntax and functional components. From what I've read, that is the new and best way to currently develop in React.
I've currently find myself in need of doing some threading, and research has pointed me in the direction of web-workers. However, I've been unable to find an example for webworkers in react that uses the arrow syntax, all examples use a function() which is what I'm trying to avoid. Could anyone give an example on how I could do this? I really don't know how to do any of this, the creation of the worker, the posting and recieveng of messages and the termination.
P.S.: I'm using JavaScript version of react, not TypeScript
You can create a functional component like this and also can create a arrow function too.
const YourFunction = (props)=>{
return ()
}
Related
I would like to know if it is possible to create a React project containing Redux library and then export it in another project? Until now, I only create components that display data. So I never wonder if it is possible.
The goal is to develop a little chatbot that communicates with an API. Then, this project will be used in several React projects.
Is it possible to do this? If yes, is it a good practice?
I have searched on the web and on Stack Overflowbut I didn't find any answer.
Sorry if the question has already been asked.
Thanks.
It is possible. A React component is a JavaScript function or a class. It can contain any JavaScript code. So a companent that is exported to other projects can manage its state using Redux.
Redux makes sense when the state handling is complex. Your component seems simple since all it does send data to an API and show received data. If you think it is complicated and that it would be difficult to implement it using pure React alone, you can use Redux.
I'm looking for a simple way to document Custom React Hooks, and Storybook has caught my intention as a clean and relatively easy way to document/demo components I write in React.
However, I can't seem to find any examples of how to document a Custom hook in Storybook.
Currently I have to create a wrapper component and redefine all my hook's arguments as the props, and also return some html.
Was wondering if there's another way that people have come up with to document hook usage, inputs and returned data (types, description, control values, etc.)...
If anyone has any experience with this, a simple example would be greatly appreciated!
ps: using storybook v6
I'm new to using Next.js to create websites with react.js. I am trying to put the module "react-insta-stories" (https://github.com/mohitk05/react-insta-stories). Only he accuses that the document is not defined. I know you've had similar questions here, but I wanted to ask you something different, more general ... Because there are several awesome modules that I wanted to use in this project and the next.js seems to make it difficult. Some modules just that only speak with the "browser" . The question is ... can I use any module even from react.js after javascript instantiates my application with no problems with next.js? And does anyone know how I could put this react-insta-stories in my project? Because I tried some solutions, but I think they are beyond my knowledge.
By default next.js performs server side rendering. The quick and dirty way of getting react components that require the document or window to work is to call them as a dynamic component in next.
If you can a better way that allows for server side rendering of your component is to run this code in a useEffect hook or similar, as this will be sent to the browser to run.
For example
import React, { useEffect, useRef } from 'react'
function ComponentWithEffect(): JSX.Element {
const divRef = useRef<HTMLDivElement>(null)
useEffect(() => {
divRef.current?.width = window.width
divRef.current?.height = window.height
}, [])
return(
<div ref={divRef}/>
)
}
But this is not always possible, because with external libraries you might not have access to the underlying methods. There are heaps of examples in the repo as well.
I would like to know if it is possible to create a React project containing Redux library and then export it in another project? Until now, I only create components that display data. So I never wonder if it is possible.
The goal is to develop a little chatbot that communicates with an API. Then, this project will be used in several React projects.
Is it possible to do this? If yes, is it a good practice?
I have searched on the web and on Stack Overflowbut I didn't find any answer.
Sorry if the question has already been asked.
Thanks.
It is possible. A React component is a JavaScript function or a class. It can contain any JavaScript code. So a companent that is exported to other projects can manage its state using Redux.
Redux makes sense when the state handling is complex. Your component seems simple since all it does send data to an API and show received data. If you think it is complicated and that it would be difficult to implement it using pure React alone, you can use Redux.
I'm pretty new to React Native and Javascript, I'm currently trying to test methods inside my components, I've seen this being done with Enzyme like
const wrapper = shallow(<Component/>);
wrapper.instance().methodIwannaCall();
Coming from the iOS Dev world, I'm having a hard to understanding why it seems to be so complicated to get an instance of a class and call a method on it.
Unfortunately I'm using React 16.0.0-alpha.12 which means I can't for now use Enzyme, which seems to be the library everyone is using to accomplish what I need.
Also notice I'm not using Redux, I suspect this would be less of a pain if I'd use Redux, since that way all my business logic would be within actions and hence would be easier to test.
Any comments/help are greatly appreciated.
Cheers
You can use pure ReactTestUtils to get instance of your component, for example using renderIntoDocument method:
import ReactTestUtils from 'react-dom/test-utils';
const wrapper = ReactTestUtils.renderIntoDocument(<Component/>);
wrapper.methodIwannaCall();