I want to throw an error in my node application as follows. this give me the following output. I can’t access the properties of this error object. What am I doing wrong here? Answer The constructor for an Error object expects a string, not an object (which is why your scheme doesn’t work). You are…
Tag: reactjs
React-Native another VirtualizedList-backed container
After upgrading to react-native 0.61 i get a lot of warnings like that: What is the other VirtualizedList-backed container that i should use, and why is it now advised not to use like that? Answer If someone’s still looking for a suggestion to the problem that @Ponleu and @David Schilling have described…
How do you dynamically set a recipient in a mailto link?
I’m trying to dynamically set the recipient of my mailto link in javascript. I thought that I could just put a javascript variable in the recipient place of the link, but I get errors when trying to do so. Anyone have any suggestions of why this might not be working? This is what I currently have, which…
How to clear react state in modal after closing?
I’ve got a product card with product details shown. On the bottom, there is an ‘edit’ button. When clicked it shows a modal with prefilled input fields, that can be edited then saved. Modal can also be closed without saving (but with input fields edited). My problem is that when a user edits…
Scroll to selected list item in material-ui
I have a list, build with material-ui. There are a lot of items in it, so scrollbar is visible. What I would like to do is scroll to the selected item. Have any ideas of how to implement this? Here is a demo sendbox link After click on the item list should looks like this (selected item is in the
Organizing React routes into separate components
I’m trying to find a way to organize my routes to assist the dev who might be taking over my work in the future. I thought of separating my <Route /> entries into separate components and then just load those into a main component similar to how users are assigned groups. The issue is that when usi…
Lodash debounce async/await
I’m trying to add debounce to my application before I do an api call. However when I introduce debouce, it seems like my await is ignored and the function calls due to missing values Error: in the setSearch method, I wrapped the call to get data in debounce but nothing happens. Answer I think I figured …
Send multiple props across components React
I am trying to send two variables from the Component ‘Game’ to the Component ‘App’ but I am unsure how to send more than one prop at a time. This what I have: With this I am able to send the prop ‘score’ from ‘Game’ to ‘App’ but I was wondering if it…
How to get value of useState variable in function that passed to another component
The best way to describe question is my code: So i have params variable, that im init with object, that i’m getting async from firebase. Implementation of initializing you can see in useEffect method. For every object i want to pass ref for the function “fieldChangedHandler”, for managing va…
Responsive Props In ReactJS Styled Components
I have an idea of how to do responsive props using Styled Components, but I can’t figure out how to implement it. My idea goes something like this: In this case color and bg are just props that I set in my styled component: The idea is that I have a top-level prop that is for a particular media query