So, I have stored a component in a variable const span = <span>{this.state.text}</span>. Now when I render this element and update the text within the state. The element is not re-rendered. So this is my code So even after updating the state, the span has the initial value of the state. Is there a…
Tag: reactjs
How to change marker label color of react-google-maps
I am using @react-google-maps/api library. I’ve integrated google map but I am facing marker label color, I tried very hard but didn’t find any solution. Could someone please help me with how to resolve this issue. Answer Try this: label: {text: `${id}`, color: “blue”}
How to store fetched data in state and render it in my component [closed]
Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers. Closed 1 y…
Is there any way to check a image size before uploading in react native?
I am currently using image picker and image manipulator in my project for uploading and compressing the image. But I want to show user that he cannot upload image greater than any particular size(let’s say 5mb). How can I achieve this in react- native? Answer I’m actually doing this exact thing wi…
useQuery hook not returning data variable
I have a problem in my useQuery hook from react-query package. Here I call the API using axios and I’m successfully getting the data (I debugged my app). The problem is when I return the result it’s not saving in the data variable of the useQuery hook. Here is my code: Answer because this function…
Old state is being shown despite updating in React Highcharts click event
I want the new state to show, but I get different behavior. I have three points (look at code below or sketch) and if I click a point, then whatever state value is at that time, in future clicks the old value is shown. I am not sure what this is being caused by. For example: Click point A, then
handling mutliple inputs using redux
I have react hooks section in which user can edit input fields, there are hundreds of inputs that is why I need to use redux (newbie to redux though), Live demo on codesandbox: demo so far I have this and here is setting js where I have input fields Expected results: Just when the user types in inputs eg firs…
Avoid Multiple ReRenders React Component after Randomizing component
On page load I want React to render a component randomly because I have two different survey forms that I want randomly assigned to a user. However, because of the multiple re-renders that react goes through the piece of code doesn’t quite work the way I expected. Sometimes, depending on the randomness,…
React : Cannot set property ‘animation’ of undefined
I have a list in React where I’m using .map to render a loop from an array of elements. The radio inputs are working perfectly, everyone is independent of the others, but I can’t do the same for Select. The Select area is changing in every field, I want it to change to it specified field like I di…
React Functional Component Parent and Child – Unhandled Rejection (TypeError): X is not a function
I have a parent app which contains a handler function (handleChallengeSave). The handler function triggers a useState (setSavedChallenge) in the parent. The handler function is passed down as props to the child. I’m getting an ‘Unhandled Rejection (TypeError): X is not a function’ error. How…