According to the docs, “Without middleware, Redux store only supports synchronous data flow”. I don’t understand why this is the case. Why can’t the container component call the async API, and then dispatch the actions? For example, imagine a simple UI: a field and a button. When user pushes the button, the field gets populated … Read more
Is there a way to only add attributes to a React component if a certain condition is met? I’m supposed to add required and readOnly attributes to form elements based on an Ajax call after render, but I can’t see how to solve this since readOnly=”false” is not the same as omitting the attribute completely. … Read more
I’m building a React component that accepts a JSON data source and creates a sortable table. Each of the dynamic data rows has a unique key assigned to it but I’m still getting an error of: Each child in an array should have a unique “key” prop. Check the render method of TableComponent. My TableComponent … Read more
This question’s answers are a community effort. Edit existing answers to improve this post. It is not currently accepting new answers or interactions. I have started to learn React out of curiosity and wanted to know the difference between React and React Native – though could not find a satisfactory answer using Google. React and … Read more
I have an external (to the component), observable object that I want to listen for changes on. When the object is updated it emits change events, and then I want to rerender the component when any change is detected. With a top-level React.render this has been possible, but within a component it doesn’t work (which … Read more
I’m using React-router and it works fine while I’m clicking on link buttons, but when I refresh my webpage it does not load what I want. For instance, I am in localhost/joblist and everything is fine because I arrived here pressing a link. But If I refresh the webpage I get: Cannot GET /joblist By … Read more
Closed. This question is opinion-based. It is not currently accepting answers. Closed 3 years ago. Locked. This question and its answers are locked because the question is off-topic but has historical significance. It is not currently accepting new answers or interactions. I’ve read this answer, reducing boilerplate, looked at few GitHub examples and even tried … Read more
I’m trying to find the proper way to define some components which could be used in a generic way: <Parent> <Child value=”1″> <Child value=”2″> </Parent> There is a logic going on for rendering between parent and children components of course, you can imagine <select> and <option> as an example of this logic. This is a … Read more
What does the … do in this React (using JSX) code and what is it called? <Modal {…this.props} title=”Modal heading” animation={false}> 20 20
I’m trying to do something like the following in React JSX (where ObjectRow is a separate component): <tbody> for (var i=0; i < numrows; i++) { <ObjectRow/> } </tbody> I realize and understand why this isn’t valid JSX, since JSX maps to function calls. However, coming from template land and being new to JSX, I … Read more
