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2025-01-17 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Development >
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Most people do not understand the knowledge points of this article "how to use isProxy and isReactive in Vue3.0 API", so the editor summarizes the following content, detailed content, clear steps, and has a certain reference value. I hope you can get something after reading this article. Let's take a look at this "how to use isProxy and isReactive in Vue3.0 API" article.
IsProxy
Check whether the object is a proxy created by reactive or readonly.
IsReactive
Check whether the object is a responsive agent created by reactive.
Import {ref, isReactive, reactive} from "vue"
Const count = ref (123)
Const state = reactive ({
Name: "John"
});
Console.log (isReactive (state)); / /-> true
Console.log (isReactive (count)); / /-> true
If the agent is created by readonly, but another agent created by reactive is wrapped, it also returns true.
Import {readonly, isReactive, reactive} from "vue"
Const state = reactive ({
Name: "John"
});
/ / read-only proxy created from ordinary objects
Const plain = readonly ({
Name: "Mary"
});
Console.log (isReactive (plain)); / /-> false
/ / read-only proxy created from responsive proxy
Const stateCopy = readonly (state)
Console.log (isReactive (stateCopy)); / /-> true
IsReadonly
Check whether the object is a read-only proxy created by readonly.
ToRaw
Returns the original object of the reactive or readonly proxy. This is an "escape pod" that can be used to temporarily read data without the overhead of agent access / tracking, or to write data to avoid triggering changes. It is not recommended to keep persistent references to the original object. Please use it with caution.
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