Questions tagged [reactjs]
The reactjs tag has no usage guidance.
114
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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
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1
answer
174
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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.
...
CommunityBot
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54
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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 ...
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15
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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);
...
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74
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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 ...
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3
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110
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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 ...
- 1,854
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2
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360
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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 ...
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3k
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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 ...
- 161
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24
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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(() => {
...
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419
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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>
&...
CommunityBot
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351
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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 ...
CommunityBot
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1
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2
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128
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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 ...
- 21
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3
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120
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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 ...
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47
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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 ...
- 507
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2
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136
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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 ...
CommunityBot
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84
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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,...
- 1,009
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83
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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 ...
- 9,298
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4
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433
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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 ...
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43
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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 ...
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53
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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 ...
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2
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77
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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....
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1
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832
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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 ...
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1
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87
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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 (...
CommunityBot
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106
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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 ...
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84
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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 ...
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2k
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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 ...
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2
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337
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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 ...
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-2
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141
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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-...
- 33.4k
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47
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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 ...
- 1,309
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89
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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)...
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28
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14
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9k
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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 ...
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446
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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 ...
CommunityBot
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213
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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 ...
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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(
...
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133
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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 ...
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39
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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 ...
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13
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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 ...
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999
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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 ...
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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.
- 141
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3
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444
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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 ...
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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" {......
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267
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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 ...
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127
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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 ...
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111
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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
...
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2k
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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 ...
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6k
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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 ...
CommunityBot
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75
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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, ...
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203
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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 ...
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1k
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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 ...
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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 ...
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