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Tag: reactjs

ref is null Typescript + NextJS

I need to call methods from a custom child component inside the parent component. But unfortunately the ref to the child component (called CanvasUI) is always null. I don’t understand why as it seems to me that I have implemented everything correctly. This is my parent component And this is the CanvasUI component CanvasRef Interface I left out unimportant code

React.js, map is not rendering components

I have this as top component: This is my Main component: And this is Thread component: But iteration is never reaching Thread component. And this [{ post: “b” }] that i used as initial state is not getting printed on screen. What could be the issue? That is currently the output coming: Answer It is because you are not returning

Access from origin ‘https://example.com’ has been blocked even though I’ve allowed https://example.com/

I have an app made with React, Node.js and Socket.io I deployed Node backend to heroku , frontend to Netlify I know that CORS errors is related to server but no matter what I add, it just cant go through that error in the picture below. I also added proxy script to React’s package.json as “proxy”: “https://googledocs-clone-sbayrak.herokuapp.com/” And here is

Assign ref dynamically inside concat in react render

I have an array of objects which I create on pressing the add button.The add handler function is as below. This create multiple EditContainer elements all of which share the same ref.How can I create refs like this on the fly for a dynamic array of Object which is a state Answer editContainerRefs.current will provide you the array of EditContainer

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