One of my components has a created hook set up as follows:
created() {
if (this.$route.query.q) {
//fetchdata
}
}
But, when I try to change the URL within the same component using $router.push(`?q=${search}`), the URL updates but the created hook doesn't run again.
When navigating to the same component in Vue, it will reuse the instance and not re-run the created hook. However, you can force it to run again by adding a key to the <router-view>:
<router-view :key="$route.fullPath" />
Alternatively, you can utilize the beforeRouteUpdate hook:
beforeRouteUpdate(to, from, next) {
if (this.$route.query.q) {
//fetchdata
}
next();
}
The beforeRouteUpdate hook does not execute on initial component creation, so using both created and beforeRouteUpdate may be necessary.
Key differences:
With the key approach, the component is not cached and will be recreated on every route change, triggering the created hook each time. This may be useful if you need to perform an action only once in the created hook, like calling an API regardless of query parameters. In rare cases, there could be performance implications from constant recreating.
Using beforeRouteUpdate might require duplicating logic across two lifecycle hooks, but it allows for rerouting within the hook, offering additional flexibility.
Choose the method that aligns with your preferences and understanding of these distinctions.
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