So... when I do something like: const [count, setCount] = React.useState(0); // in something else now setCount(5); Now, I don't really know when setCount is going to update... I can't be sure. Obviously, the current solution is React.useEffect(() => {…
I have a component in React with two states using useState. The first one is used to Save the current Object from a form and the other one is used to store all objects by id. To make the code…
I have created a BMI calculator app and I want it to change one of the 6 buttons from "btn-primary" to "btn-danger" colors depending on the BMI answer. but after calculation, no button changes color but the answer changes immediately.…
The React docs claims that "useCallback is a React Hook that lets you cache a function definition between re-renders." How is it possible to cache function definitions? This example is taken from React docs: import { useCallback } from 'react';…
I am following along with a netflix clone project off of youtube that was put out about 6mo ago. Since the tutorial came out I believe firebase/firestore and react have released newer versions of themselves which seems to be causing…
I'm stuck in a problem related to react useState and not sure how to solve it. Some background. I've a register form with validation on blur on each field. The validation works if I blur individual field which is basically…
As explained stateItem throws an error, and when I console.log stateItem after I set the state it comes out as null. Can someone please tell me why this happens? The code is below: const [stateItem, setStateItem] = useState(null); <SwipeListView data={list}…
I created a react hook to perform api calls inspired by this article. The hook looks as followed: function useApi<T>(apiFunc: (...args: Array<any>) => Promise<AxiosResponse<T>>) { const [data, setData] = useState<T | null>(null); const [error, setError] = useState(""); const [loading, setLoading]…
I have a following action, it's an axios call with curried dispatch. Note: originally, we wouldn't need to curry the action call like that, but let's say there is a situation where I need to make it curried (code below…
Goal: one child should register the update from another child, then not re-render infinitely. The following is a story of no updates or infinite loops. If you are a master of hooks (or at least not an amateur like I),…