During component development, if you want to refresh the current page, the following are some common methods:
1. Use ():
This is the most straightforward way, it will reload the entire page, including all resources (such as JavaScript, CSS, etc.). This approach is suitable for situations where you want to completely reload the page.
();
If you want to force the page to be reloaded from the server (rather than from the cache), you can pass a true parameter:
(true);
2. Change the route:
If the Vue application uses Vue Router and wants to refresh the corresponding components of the current route, it can be done by changing the route. This usually does not reload the entire page, but simply re-renders the components corresponding to the current route.
this.$({ path: '/refresh', query: { r: () }}).catch(()=>{});
this.$({ path: this.$ });illustrate:
In this example, first try to change the route to a temporary path (/refresh) with query parameters, and then immediately return to the current path. This usually causes Vue Router to rerender the current component. Note that the .catch(()=>{}) here is to handle errors that may occur in the route guard.
3. Use key to force re-render the component:
If you want to re-render a component without changing the route, you can do so by changing the key attribute of the component. In Vue, if the value of the key attribute changes, the component will be destroyed and recreated.
<template>
<MyComponent :key="refreshKey" />
</template>
<script>
export default {
data() {
return {
refreshKey: 0,
};
},
methods: {
refreshComponent() {
+= 1;
},
},
};
</script>illustrate:
In this example, the MyComponent component has a key attribute whose value is bound to the refreshKey data attribute. When the refreshComponent method is called, the value of refreshKey increases, causing the MyComponent to be destroyed and recreated.
4. Use this.$forceUpdate():
Vue provides a $forceUpdate instance method that forces Vue to re-render components even if the data does not change. However, this method shouldcautiousUse because it can cause performance issues and violates Vue's responsive system.
this.$forceUpdate();
You should try to avoid using $forceUpdate, but try to trigger re-rendering of the component by changing the data or key. Which method to choose depends on the specific requirements and scenarios. If you just want to reload the entire page, then() is the easiest way to do this. If you want to re-render the component without reloading the entire page, changing the route or forcing re-render with key may be a better option.
The above is the detailed content of common methods to refresh the current page. For more information about refreshing the current page, please follow my other related articles!