Under the covers React will batch multiple calls to setState() into a single state mutation, and then re-render the component a single time, rather than re-rendering for every state change.. Fortunately, the solution is rather simple - setState accepts a callback parameter: I followed this tutorial along but Using onInput fixed a bug where typing text into a number input would bypass the validation I had assigned to it in onChange.Once I fixed this function to be called in onInput it triggered in all npm install create-react-app. Warning: Typically, you won't store and process data on the front-end like we are, but since the mock API we're working with won't actually save and return the new post - we're artificially adding it to the list it does return from the first GET request. Definitely this is not the cleanest code, so approaches from other answers should be employed if possible. Earn 10 reputation (not counting the association bonus) in order to answer this question. That's it for now! auth.service methods use axios to make HTTP requests. I'm building a simple user search app using React and TypeScript. ; There will be a warning message in the console if the key prop is not present on list items. It can prevent the user from processing the request by clicking the link. The reputation requirement helps protect this (Note that in the default configuration, without setting runScripts, the values of window.Array, window.eval, etc. By wrapping the element with a