Persisting Language Selection
on page referesh langauge change gone
1. **Update the language change to save to local storage**:
You can use the `@change` event on your “ to update the locale and save it to local storage.
2. **Load the saved locale on component mount**:
In your component's `mounted` lifecycle hook, you can check if a locale is stored in local storage and set it.
Here’s a modified version of your code:
<template>
<div class="locale-changer">
<select v-model="currentLocale" @change="changeLocale">
<option v-for="locale in $i18n.availableLocales" :key="`locale-${locale}`" :value="locale">
{{ locale }}
</option>
</select>
</div>
</template>
<script>
export default {
data() {
return {
currentLocale: this.getSavedLocale(),
};
},
methods: {
changeLocale() {
this.$i18n.locale = this.currentLocale;
localStorage.setItem('locale', this.currentLocale); // Save the locale to local storage
},
getSavedLocale() {
return localStorage.getItem('locale') || this.$i18n.locale; // Get saved locale or default
},
},
mounted() {
this.$i18n.locale = this.currentLocale; // Set the locale when the component is mounted
},
};
</script>### Explanation:
– **Data Property**: `currentLocale` is used to bind the selected locale.
– **Methods**:
– `changeLocale`: Updates the `$i18n.locale` and saves the current locale to local storage.
– `getSavedLocale`: Retrieves the saved locale from local storage or defaults to the current locale.
– **Mounted Hook**: Sets the locale based on the saved value when the component is mounted.
This way, the language selection will persist across page refreshes, using the value stored in local storage.
<template>
<div class="locale-changer">
<select v-model="currentLocale" @change="changeLocale">
<option v-for="locale in availableLocales" :key="`locale-${locale}`" :value="locale">
{{ locale }}
</option>
</select>
</div>
</template>
<script>
import { ref, onMounted } from 'vue';
import { useI18n } from 'vue-i18n'; // Ensure you have the correct import for Vue I18n
export default {
setup() {
const { locale, availableLocales } = useI18n(); // Access i18n's locale and available locales
const currentLocale = ref(getSavedLocale()); // Create a reactive ref for the current locale
function changeLocale() {
locale.value = currentLocale.value; // Update the locale in i18n
localStorage.setItem('locale', currentLocale.value); // Save the locale to local storage
}
function getSavedLocale() {
return localStorage.getItem('locale') || locale.value; // Get saved locale or default
}
onMounted(() => {
locale.value = currentLocale.value; // Set the locale when the component is mounted
});
return {
currentLocale,
availableLocales,
changeLocale,
};
},
};
</script>### Explanation:
– **Imports**: Make sure you import `ref` and `onMounted` from Vue and `useI18n` from `vue-i18n`.
– **Reactive Variable**: `currentLocale` is created using `ref()` to hold the selected locale.
– **Setup Function**:
– Extract `locale` and `availableLocales` from `useI18n()`.
– Define `changeLocale` to update the locale in the i18n instance and save the selected locale to local storage.
– Define `getSavedLocale` to retrieve the saved locale or fallback to the default.
– **onMounted Hook**: It ensures that the locale is set to the current value when the component mounts.
With this implementation, the selected language will persist across page refreshes by saving the selected locale to local storage and restoring it upon loading the component.
<template>
<div class="locale-changer">
<select v-model="currentLocale" @change="changeLocale">
<option v-for="locale in availableLocales" :key="`locale-${locale}`" :value="locale">
{{ locale }}
</option>
</select>
</div>
</template>
<script>
import { ref, onMounted } from 'vue';
import { useI18n } from 'vue-i18n'; // Import the Vue I18n composables
export default {
setup() {
// Use the useI18n composable to access i18n features
const { locale, availableLocales } = useI18n();
// Create a reactive reference for the current locale
const currentLocale = ref(localStorage.getItem('locale') || locale.value);
// Function to change the locale
const changeLocale = () => {
locale.value = currentLocale.value; // Update the i18n locale
localStorage.setItem('locale', currentLocale.value); // Save the selected locale to local storage
};
// Lifecycle hook to set the locale when the component is mounted
onMounted(() => {
locale.value = currentLocale.value; // Set the locale based on the saved value
});
return {
currentLocale,
availableLocales,
changeLocale,
};
},
};
</script>### Key Points:
– **Imports**: We import `ref` and `onMounted` from Vue and `useI18n` from `vue-i18n`.
– **Reactive Reference**: `currentLocale` is created using `ref()` and initialized from local storage or the current i18n locale.
– **Change Locale Function**: The `changeLocale` function updates the locale in the i18n instance and saves the selected locale in local storage.
– **Lifecycle Hook**: The `onMounted` hook sets the locale based on what was stored in local storage when the component is mounted.
### Notes:
– Ensure you have the necessary packages installed (`vue-i18n`).
– This implementation is fully contained within the Composition API and maintains the selected language across page refreshes. The component initializes the current locale from local storage and updates it accordingly when the user makes a selection.