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What is placeholder data? Placeholder data allows a query to behave as if it already has data, similar to the initialData option, but the data is not persisted to the cache.
We can use useQuery to fetch data from the network and cache it. In this article, we will see how useQuery can ease our job in polling and refetching APIs conditionally with a small example....
If set, this value will be used as the placeholder data for this particular query observer while the query is still in the loading data and no initialData has been provided.
You must not put the ? parameter placeholders inside a quoted SQL string literals in your query. Parameters are an alternative to using string literals. I would write the query like this: SELECT DISTINCT r.restname FROM restaurants r JOIN food f ON f.restid = r.restid JOIN drinks d ON d.restid = r.restid WHERE f.foodcategory LIKE ?
Whether you need to poll an API at a regular interval, fetch data in the background, or transform the data before it’s returned to the component, options like refetchInterval, refetchIntervalInBackground, and select make it easy to get the job done.
We make use of Placeholder in forms, to show data related to the entity. For example let's say we have an EditUser page and form. We are using Placeholder as an example while viewing this page, to show some interesting live updating status about some thing based on this user.
The placeholder attribute specifies a short hint that describes the expected value of an input field (e.g. a sample value or a short description of the expected format). The short hint is displayed in the input field before the user enters a value.
JSONPlaceholder is a free online REST API that you can use whenever you need some fake data. It can be in a README on GitHub, for a demo on CodeSandbox, in code examples on Stack Overflow, ...or simply to test things locally. JSONPlaceholder comes with a set of 6 common resources: Note: resources have relations.
What is placeholder data? Placeholder data allows a query to behave as if it already has data, similar to the initialData option, but the data is not persisted to the cache.
We make use of Placeholder in forms, to show data related to the entity. For example let's say we have an EditUser page and form. We are using Placeholder as an example while viewing this page, to show some interesting live updating status about some thing based on this user.