Questions tagged [reactjs]

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Elegant way to go about navigating between components in React

I'm busy creating a navigation flow on the startup page in a SPA, and I'm experimenting with different methods of going about navigating between components. Here's an image to give you an idea of the ...
4 votes
1 answer
174 views

ReactJS with Elasticsearch App Architecture

I want some advice regarding my architecture and hosting options. I'm attempting to build an e-commerce site for e-books. It will use nestJS for the backend and ReactJS+Typescript for the frontend. ...
0 votes
1 answer
54 views

Clean Architecture for React App: Component / View / Page

Abstract I'm trying to figure out a solid, scalable, clean and practical architecture for react projects. As a a playground I have a project with two Screen and a JSON server. When I try to apply a ...
0 votes
0 answers
15 views

React function that opens and closes form in which user selects some data?

I am developing sales invoice form in ReactJS as SPA application, which communicates with API/DB (Laravel). I have the following use case: user clicks on one button (e.g. Select Person, Select Good); ...
0 votes
0 answers
74 views

Identify Domain Entities for a search tool interface - Clean Architecture

I am pretty new to Clean Architecture / Onion Achitecture, I actually not sure if the 2 terms are exchangeable. So it pretty clear to me, considering is a few days I am reading and study about it. It ...
0 votes
3 answers
110 views

Optimal method of storing image thumbnails

I'm working on an application with a database containing many recipes. The API is written in Django (with Django REST Framework) and frontend in React.Each recipe is assigned a high-quality image. In ...
1 vote
2 answers
360 views

What is the Advantage of React JS over Pure Javascript + PHP?

What exactly is the purpose of React JS? I've heard a few things, like: It updates the page without refreshing. It is modular and can reduce redundant coding. It is faster than updating the DOM ...
3 votes
2 answers
3k views

Why are React keys limited to strings?

In React, when rendering a mapping from elements of a list/array/iterable to React elements, we're required to attach a locally-unique key to each element. Generally this is so that if an element ...
0 votes
0 answers
24 views

Effective cache solution to have the newest data in React Native

Goal We have an app with different articles. I want to cache an article when the user has read it, but make sure that I display the latest data. I came up with this hook: React.useEffect(() => { ...
0 votes
1 answer
419 views

Is it an anti-pattern on React to search for children with a specific element type?

Context When designing the API of a React component, you may decide to receive props in a more semantical way. Here's a simple example <Modal headerTitle="foo" /> vs <Modal> &...
1 vote
1 answer
351 views

Integrate react app with php app

I have an old php web application, with very bad code. While a lot of it just has html and ajax calls in the, the wrapper is still php. I want to develop the new modules in react, and slowly replace ...
1 vote
2 answers
128 views

Preventing parent component re-rendering of a big React component when you "Lift State Up"

I have a very big form - let's call it <MyForm> - consisting of the following: text fields and dropdowns custom selector made of selectable cards table input (for this example 50 rows with each ...
0 votes
3 answers
120 views

What pattern is a function that returns a component?

Ok I have a bunch of components that all have the same logic but have different css classes. So I wanted to create a sort of factory function that takes the names of the classes as its argument and ...
0 votes
1 answer
47 views

NextJs Explanation on Ecommerce and Other Project Implementation [closed]

I'm attempting to create a project to increase and enhance my coding skills, and I've lately migrated React to Nextjs. I've noticed that NextJs' main point or strength is rendering; Could someone ...
1 vote
2 answers
136 views

Best Practice: Should cascading updates be handled by the frontend or the REST API?

I am designing a timesheet app for logging user tasks using React for frontend and Django REST Framework for backend. The database is PostgreSQL and I have a table for recording the tasks with 4 ...
0 votes
0 answers
84 views

React Redux chain-of-actions pattern - should I create new synchronous middleware for synchronous actions?

I am creating React Web application with Yii2 API and Redux-Saga which calls Yii2 API (asynchronously). I am stuck with one especially large and complex user action (initiated by the selection of good,...
0 votes
1 answer
83 views

Replacing ASP.Net 4 app with microservices and React

Backstory: My new employer has Dynamics CRM on-prem and it is used by all office staff and other colleagues that are consultants. All other employees are a working force out on various construction ...
1 vote
4 answers
433 views

Lead developer wants to use a micro-frontend design pattern. Are my concerns valid?

I'm a React developer at a large company working on an enterprise application which draws on a large amount of data, but performs a very specialized task and has only a handful of internal users. The ...
-1 votes
1 answer
43 views

Where should I put/handle periodic data updates in React?

I'm following the guide in https://reactjs.org/docs/thinking-in-react.html which makes sense for data that I request and update on a filter. However, I want to have some sort of general ...
0 votes
1 answer
53 views

Anyone have data on impact on UX of shipping profiling build in production to users?

I understand that using the React Profiler in production should have a small or negligible impact on user experience at least for profiling 20-50 (guess) components on a page. I would like to know if ...
0 votes
2 answers
77 views

React: Ternary operator within component vs outside component

I have a pull request and this pr is being reviewed by co-worker. Context I'm using React and a specific component has ternary operator within component like below. const ExampleComponent = (): React....
1 vote
1 answer
832 views

Authentication with JWT in HTTP only cookie without refresh token

The motto of the upcoming question is "I don't know what I don't know". I would like to know if there are downsides or security risks with an authentication implementation. Right now, I'm ...
-1 votes
1 answer
87 views

Loading in and Autocompleting a CSV File React

I'm currently working on a React Application with Firebase that involves a ton of data manipulation and reading. One specific feature is the ability to autofill a form based on a very large CSV file (...
0 votes
1 answer
106 views

Reactjs with large DB

I am working with a very large SQL database through a frontend reactjs application with a node server intermediary using an ORM for query sanitation. However due to the size of the DB it takes some ...
-3 votes
1 answer
84 views

Sharing React Native Component as a "black box"

I'm looking for a way to share a React Native component with 3rd parties without having to share the actual source code. Something like a .jar in Java or a .dll for C#. So assuming we have company A ...
-1 votes
1 answer
2k views

How to store blog post in database - React & GraphQL

I am building travel blog using React as frontend Javascript framework along with GraphQL. I am doing this project by myself as a pilot test and I am currently in a phase of translating photoshop ...
-2 votes
2 answers
337 views

Advice: How to secure access to photos in a React App

I have a React App (created via create-react-app) secured with OAUTH2. Currently all dynamic content is via REST APIs, secured with the same OAUTH2 token issued at login. It is hosted on AWS. I want ...
-2 votes
1 answer
141 views

Should I repeat my code or use if statement?

A question from a friend: I have multiple usages for the same code, let's say a vertical HTML card. I change the title and a lot of data based on the react component. it feels unnecessary performance-...
-3 votes
1 answer
47 views

Testing a React component which receives a function as a prop

Suppose there's a root <App /> which houses multiple components, one of them being, say <SearchBox />. App component houses the app state (such as searchResults array) and iterates the ...
1 vote
0 answers
89 views

Reactjs + nodejs external authentication flow

I am developing a RESTful application with nodejs in the backend with express.js as middleware. I am also developing a client in Reactjs. I want to use an external authentication service (LDAP/AD/ADFS)...
28 votes
14 answers
9k views

Ways to explain code when told it doesn't make sense

As a programmer I have found my code frequently elicits the reaction "I don't understand". Whenever I get this response I try my best to explain my code patiently, and not make anyone feel ...
2 votes
2 answers
446 views

React says refs and imperative code are not the right tool for showing and hiding dialogs. Why though?

The docs explicitly state this: Avoid using refs for anything that can be done declaratively. For example, instead of exposing open() and close() methods on a Dialog component, pass an isOpen prop to ...
0 votes
3 answers
213 views

React - When is a backend necessary?

So I'm currently playing around with web development as a project, and I've been looking at React recently. My current issue is that I'm having trouble distinguishing between front and back end ...
3 votes
1 answer
2k views

How to passing variables from php to react.js component?

For example, I have a react.js component named Question which need the props title,id,content. <div id="main-section"> <div id="question"></div> </div> ReactDOM.render( ...
2 votes
0 answers
133 views

React Hooks: using state in useEffect without depending on it

I have run into a situation in React where I want to run a function F in a useEffect hook whenever a value V1 from the store changes. F uses another value from the store V2. I only want to run F when ...
1 vote
1 answer
39 views

what kind of relationship do child components have with components in react?

I'm currently writing a paper on my react frontend and I'm struggeling to find the right verb for the interaction between child-components and components in react. For example: "I have a table ...
1 vote
0 answers
13 views

Best way to allow other components to change table's focused row?

I have displayProjectTable that gets state from reducer projectData and populates itself. Currently displayProjectTable has a local state that stores focusedRowID. My problem is that I want other ...
-1 votes
1 answer
999 views

Recommend a way to handle multiple UI frameworks in a pattern library

We are setting up a pattern library. It's use is on the one hand to document and display our UI elements in a web view. On the other hand, it should also be the place where components are built. The ...
-2 votes
1 answer
58 views

React class or function for stateful components?

Which is better to use? react class based stateful component or react hooks functional stateful component? I've searched a bit but couldn't find what is preferred to use.
5 votes
3 answers
444 views

How to manage chaotic code explosion in React application

So we decided to redo UI of our web application in React. Six months down the lane and we have a complete mess of components and reducers and thunks and actions and god knows what not. We have ...
2 votes
1 answer
487 views

Render constant props components from an object or by hand?

Lets say I have a component that render some "static" information and another one that is the parent of these components. function Foo(){ ... return ( <Bar name="I" {......
0 votes
1 answer
267 views

Wrapping ReactJS UX component library in another layer of abstraction, pros and cons?

There's AntD library with various UX components. Right now I required to wrap all components which I'm using in another layer, to make an abstraction. For example, if I'm using AntForm component I ...
1 vote
0 answers
127 views

Where to place code which synchronizes state of Redux with localStorage?

In our project, I was need to sync a piece of information between localStorage and the Redux state. Actually I subscribed to changes in a localStorage and in Redux, and if change happens in ...
2 votes
0 answers
111 views

Dependency injection of UI components via React context

In React, it's common for libraries, and app-internal utilities, to used context-based dependency injection. Some examples: function MyComponent() { const client = useApolloClient(); // Apollo ...
2 votes
0 answers
2k views

Updating nested state with React Hooks and Typescript - performance vs clarity

I have some deeply nested react components. Let's limit them to 3 levels of nesting and call them Parent, Children and Grandchildren. The state for the entire app is stored in a single object in the ...
12 votes
3 answers
6k views

Understanding Flux pattern

I'm actually studying the flux pattern and there's something that I can't understand concerning the stores. What are they exactly? I have read many articles, and it seems that it concerns the ...
2 votes
1 answer
75 views

ReactJS - lift state to main container or export a helper?

I'm using ReactJS (React Hooks, specifically) to build an application. Part of that application involves account creation, sign-in, and authentication. I only recently finished the sign-in feature, ...
-1 votes
1 answer
203 views

Why is it called a functional component?

A quick google search shows that the question I have has not been asked directly, and so I ask it here. For what its worth, I am learning react, and I come from a C++ background, where as far as I ...
0 votes
1 answer
1k views

Passing javascript function vs use imports in Svelte or React component

I wanted to use some function from javascript module in one of my component. Should I pass it in props when making the component or should I just use Imports in component itself to get the javascript ...
0 votes
0 answers
34 views

Methods for storing data pre-registration in a web app

I have a web app - it's more complicated than a todo list but for simplicity sake let us assume it is a todo list. The user has the choice to sign up and create an account thus allowing them to store ...