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This article mainly introduces how to use keep-alive in vue2.0. It is very detailed and has a certain reference value. Friends who are interested must finish it!

1. Basic usage

Vue2.0 provides a keep-alive component for caching components to avoid loading the corresponding components multiple times and reduce performance consumption

Sometimes you may need to cache all the pages of the entire site, and the request is usually triggered as soon as the page is entered.

In the case of keep-alive

Caching can be implemented by writing the first trigger request in the created hook function

For example, the list page, if you go to the details page, it is still on the original page.

two。 Cache part of the page or component

(1) using router. Meta attribute

/ / this is the most commonly used method at present.

Router Settin

... Routes: [{path:'/', redirect:'/ index', component: Index, meta: {keepAlive: true}}, {path:'/ common', component: TestParent, children: [{path:'/ test2', component: Test2, meta: {keepAlive: true}}]}. / / indicates that both index and test2 use keep-alive

(2)。 Use the new property inlcude/exclude

After 2.1.0, two attributes of include/exclude are provided to cache the corresponding components.

/ / where aformab is the name of the component

Note: this method knows the name of the component in advance.

(3) dynamic judgment

IncludedComponents can be set dynamically.

The above is all the contents of the article "how to use keep-alive in vue2.0". Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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