I’m using DatePicker in the following scenario: Render the form that used DatePicker on componentDidMount, fetch form’s saved information (if it was saved previously) set DatePicker’s prop defaultValue from undefined to the fetched value Seems pretty simple. But, since DatePicker’s beh…
Tag: reactjs
React: Perform action, only once, when html element is clicked
In jQuery, it’s pretty trivial to perform an action, only once, when an event is triggered on the html element. For example: In React, it’s not so easy. How can I perform an action, in React, when the html element is clicked, and perform that action only once (similar to my jQuery code)? Answer Us…
How to update single value inside specific array item in redux
I have an issue where re-rendering of state causes ui issues and was suggested to only update specific value inside my reducer to reduce amount of re-rendering on a page. this is example of my state and I am currently updating it like this where action.payload is a whole array containing new values. But now I…
How can I update the parent’s state in React?
My structure looks as follows: Component 3 should display some data depending on state of Component 5. Since props are immutable, I can’t simply save its state in Component 1 and forward it, right? And yes, I’ve read about Redux, but I don’t want to use it. I hope that it’s possible to…
Passing multiple actions to onClick event in a react-bootstrap Button
Consider a react/redux application with react-bootstrap components. This may be a very rookie question, but I am trying to pass multiple actions to a single onClick event on a Button from a react-bootstrap library. How to do this properly? Answer Wrap them in another function:
Failure to call AppRegistry.registerComponent
I created a new project using react-native init Wevaha,after that I excute it work’s properly then I modified sample app based on my requirement again run it works properly but the next time while running the app I am gettingthe error like AppRegistry.registerComponent’ The screen shot attached be…
How to use border radius only for 1 corner (react-native)?
How to use border radius in React Native only for 1 corner? I have a modal window As you can see bottom corners not rounded, it happens when I used backgroundColor for buttons. I was trying to set overflow hidden to modal wrapper and it didn’t help me. Now I want to use border radius to buttons (only fo…
React-Redux: Should all component states be kept in Redux Store
Say I have a simple toggle: When I click the button, the Color component changes between red and blue I might achieve this result by doing something like this. index.js container.js action_creator.js reducer.js but this is a hell of a lot of code to write for something that I could have achieved in 5 seconds …
Calling setState in a loop only updates state 1 time
Is there a reason that calling setSate() in a loop would prevent it from updating the state multiple times? I have a very basic jsbin that highlights the problem I am seeing. There are two buttons. One updates the state’s counter by 1. The other calls the underlying function of One in a loop — whi…
Pros/cons of using redux-saga with ES6 generators vs redux-thunk with ES2017 async/await
There is a lot of talk about the latest kid in redux town right now, redux-saga/redux-saga. It uses generator functions for listening to/dispatching actions. Before I wrap my head around it, I would like to know the pros/cons of using redux-saga instead of the approach below where I’m using redux-thunk …