mounted is executed first. The execution order of Vue life cycle hooks is: created, beforeMount, mounted, watch, beforeUpdate, updated, beforeDestroy, destroyed; the mounted hook is executed before the watch option.
Which one is executed first, watch or mounted, in vue?
Answer: mounted
Detailed explanation:
mounted is a Vue life cycle hook. When a Vue Fired when an instance is created and mounted to the DOM. watch is a Vue option used to monitor changes in data properties and execute callback functions when they change.
Therefore, the mounted hook will be executed before the watch option. This is because in the life cycle of Vue, the created, mounted, beforeUpdate, updated, beforeDestroy and destroyed hooks are triggered in sequence, and the watch option is executed after the mounted hook.
Process:
- created(): Create a Vue instance.
- beforeMount(): Prepare to mount to DOM.
- mounted(): Mounted to DOM. At this stage, the mounted hook is triggered.
- watch(): Monitor changes in data attributes.
- beforeUpdate(): Before the data attribute changes.
- updated(): After the data attribute has changed.
- beforeDestroy(): Before the component is destroyed.
- destroyed(): The component is destroyed.
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