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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…

in react file upload not working properly

If you select any file its working perfectly but after selecting any file again if you click choose file button and not select any file then error occur “Cannot read properties of undefined (reading ‘name’)” how to resolve this error. I also gave filename===undefined but its not workin…

Can type of defined variable be undefined in javascript?

Here is an example code from Google about how to safely initialize its recaptcha service https://developers.google.com/recaptcha/docs/loading As you can see grecaptcha.ready is a function and it again checks if(typeof grecaptcha === ‘undefined’). But how can grecaptcha be undefined at the time whe…

Why when i generate an Error i am getting an String Error?

i am getting several error, that is ok, when the user reject, when the transaction was bad, and so on but now i want to show differents message by their code error in my service of my project i am getting this error this is my code then i am using the getInformation function like this: here i see the