Uselazyloadquery vs usepreloadedquery

1. What is the difference between usePreloadedQuery and useLazyLoadQuery?
2. What is difference between useEffect and useLayoutEffect?
3. What is a preloaded query relay?
4. How relay is different from Redux?
5. When to use useQuery vs useLazyQuery?
6. What is the difference between useMutation and useQuery?
7. Can we use 2 useEffect?
8. Is useEffect synchronous or asynchronous?
9. What is difference between useMemo and useEffect?
10. What are the five types of query?
11. Which are the two main types of query technique?
12. Is there a better alternative to Redux?
13. What are the three types of relays?
14. Why do we use useLazyQuery?
15. Does useQuery run on every render?
16. What is the difference between useQuery and fetch query?
17. What is the use of useLazyQuery?
18. What is the difference between useQuery and client query?
19. Is useLazyQuery a promise?
20. Does useQuery run on every render?
21. What is the difference between React useQuery and useEffect?
22. What is the difference between useMutation and useQuery in Apollo?
23. What is the difference between fetchQuery and useQuery?
24. Can we use useMemo in useEffect?
25. What is skip in useQuery?
26. What is useMutation in React query?
27. What are the two types of queries?
28. Why we use useQuery in react JS?
29. What is query and mutation in GraphQL?

What is the difference between usePreloadedQuery and useLazyLoadQuery?

usePreloadedQuery sends the request while the component is rendering, and can suspend with a loading state if the component is ready before the query returns. On the other hand useLazyLoadQuery sends the request after the component has rendered.

What is difference between useEffect and useLayoutEffect?

The main difference between the useEffect hook and the useLayoutEffect hook is that the useEffect hook serves asynchronously, whereas the useLayoutEffect hook works synchronously. In simple words, we can say that the difference between useEffect and useLayoutEffect is in the time at which these functions are invoked.

What is a preloaded query relay?

usePreloadedQuery ​

Hook used to access data fetched by an earlier call to loadQuery or with the help of useQueryLoader . This implements the "render-as-you-fetch" pattern: Call the loadQuery callback returned from useQueryLoader .

How relay is different from Redux?

Relay is similar to redux in that they both use a single store. The main difference is that relay only manages state originated from the server, and all access to the state is used via GraphQL querys (for reading data) and mutations (for changing data).

When to use useQuery vs useLazyQuery?

The useLazyQuery hook is perfect for executing queries in response to events besides component rendering. Unlike with useQuery , when you call useLazyQuery , it does not immediately execute its associated query.

What is the difference between useMutation and useQuery?

useQuery is declarative, useMutation is imperative. By that, I mean that queries mostly run automatically. You define the dependencies, but React Query takes care of running the query immediately, and then also performs smart background updates when deemed necessary.

Can we use 2 useEffect?

If we have multiple instances of useEffect in the component, all the useEffect functions will be executed in the same order as they are defined inside the component.

Is useEffect synchronous or asynchronous?

The official docs put it this way, “the function passed to useEffect will run after the render is committed to the screen”. Technically speaking, the effect function is fired asynchronously to not block the browser paint process.

What is difference between useMemo and useEffect?

In summary, the useEffect hook is used to perform side effects in a React component, while the useMemo hook is used to optimize the performance of a component by memoizing the results of a calculation or function.

What are the five types of query?

There are five types of query in Access. They are: Select queries • Action queries • Parameter queries • Crosstab queries • SQL queries. Select Queries Select query is the simplest and the most common type of query.

Which are the two main types of query technique?

Two types of queries are available, snapshot queries and continuous queries.

Is there a better alternative to Redux?

js, MobX, Flux, React, and RxJS are the most popular alternatives and competitors to Redux.

What are the three types of relays?

The three main types of relays are electromechanical, solid-state, and reed.

Why do we use useLazyQuery?

The useLazyQuery hook is perfect for executing queries in response to events other than component rendering. This hook acts just like useQuery , with one key exception: when useLazyQuery is called, it does not immediately execute its associated query.

Does useQuery run on every render?

The useQuery hook will make one fetch request on initial load, and will not refetch on subsequent renders. The useQuerey hook will trigger a re-render when it receives a response from the graphql backend (whether that response is data or an error ).

What is the difference between useQuery and fetch query?

fetchQuery is an imperative way to fetch data. You cannot call this during rendering, because it would be a side-effect and you cannot await the result. So you would need to spawn a useEffect. The other difference is that useQuery creates a subscription to the queryKey, but fetchQuery does not.

What is the use of useLazyQuery?

The useLazyQuery hook is perfect for executing queries in response to events other than component rendering. This hook acts just like useQuery , with one key exception: when useLazyQuery is called, it does not immediately execute its associated query.

What is the difference between useQuery and client query?

Other than structural differences (e.g. useQuery accepts two parameters, whereas client. query takes only one parameter - the options objects), is it safe to use one over the other?

Is useLazyQuery a promise?

The useLazyQuery function returns a promise that fulfills with a query result when the query succeeds or fails.

Does useQuery run on every render?

The useQuery hook will make one fetch request on initial load, and will not refetch on subsequent renders. The useQuerey hook will trigger a re-render when it receives a response from the graphql backend (whether that response is data or an error ).

What is the difference between React useQuery and useEffect?

The difference between React-Query and the useEffect is that React-Query will initially return the previously fetched data and then re-fetch. const isLoading, isFetching, error, data, status = useQuery(); This makes our code a lot simpler and easy to maintain, as aforementioned.

What is the difference between useMutation and useQuery in Apollo?

The difference is the flow of data. useQuery is used to query async data, useMutation is used to mutate it.

What is the difference between fetchQuery and useQuery?

fetchQuery is an imperative way to fetch data. You cannot call this during rendering, because it would be a side-effect and you cannot await the result. So you would need to spawn a useEffect. The other difference is that useQuery creates a subscription to the queryKey, but fetchQuery does not.

Can we use useMemo in useEffect?

The empty array at the end of the useEffect hook tells React to only execute the side effect when the component mounts, rather than on every render. In this example, the useMemo hook is used to calculate the sum of the numbers in the numbers array.

What is skip in useQuery?

Setting skip to true in useQuery params should skip the query. Actual outcome: Setting skip to true does not skip the query when refetch is used. How to reproduce the issue: Create a query with skip params while also using refetch.

What is useMutation in React query?

useMutation is a React hook provided by redux-query-react that can be used for easily making mutations from a React component.

What are the two types of queries?

Two types of queries are available, snapshot queries and continuous queries.

Why we use useQuery in react JS?

useQuery is a custom hook within React Query used to fetch data in a React application. Under the hood, these hooks manage lots of things such as caching data after the initial fetch, re-fetching data in the background, etc.

What is query and mutation in GraphQL?

In a GraphQL API, queries are used to fetch data from a server, while mutations are used to modify or write server-side data. Therefore, it is essential to understand its structure when defining a mutation, including the type definition, the mutation name, and variable definitions.