The role of created in vue

The created hook in Vue is called after the Vue instance is created and before the DOM is mounted. It is mainly used to perform tasks related to data processing, state initialization and dependency retrieval, avoiding heavy operations after DOM mounting.

The role of created hook in Vue

Answer:
The created hook is Called after the Vue instance is created and before the DOM is mounted. It is mainly used to perform tasks related to data processing, state initialization, and dependency retrieval.

Detailed expansion:

• Initialization data and status:

  • created hook is Ideal place to initialize data and state. It can set responsive and computed properties before accessing the DOM.

• Request data:

  • You can make an asynchronous data request to the server in the created hook. This improves performance by avoiding heavy DOM manipulation in the mounted hook.

• Get dependencies:

  • If the component depends on some external services or libraries, you can use the created hook Get these dependencies. This ensures that they are ready before using them in the mounted hook.

• Avoid DOM manipulation:

  • created hooks should not perform DOM manipulation. This is because the DOM is not mounted yet, so any modifications to the DOM will be ignored.

The difference between

######### and mounted hook: ######mounted hook is called after DOM is mounted, while created hook is called before DOM is mounted. called. This makes the created hook more suitable for tasks that don't involve the DOM. ###

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