In Vue, the created lifecycle hook function is executed after data. This order is very important to ensure that the data is available in the created hook function.
The execution order of created and data in Vue
created The life cycle hook function is in data will be executed later.
Detailed description:
-
When Vue is instantiated, the following steps will be performed first:
- Create a Empty object, used as a Vue instance.
- Initialize Vue options (props, data, computed, etc.).
- Execute
created
life cycle hook function.
-
Next, perform the following steps:
- Parse the data objects and bind them to the Vue instance through the proxy.
- Call the watch method (if any).
- Execute all other life cycle hook functions (mounted, updated, etc.) after
data
.
Therefore, created
is executed after data because before created
is executed, the Vue instance has Initialized, and the data object has been bound to the Vue instance.
This order is important to ensure that data is available in the created
hook function, because created
hook functions are typically used to perform operations that require access to data.
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