Looking for a solution to localize the default value of a component prop using vue-i18n. Here's an example:
export default {
name: 'ExampleComponent',
props: [{
prompt: {
required: false,
type: String,
default: $t('example.prompt.default')
}]
}
While trying to access $t within the default value, it seems that neither $t nor this.$t is available in that context. Any suggestions on how to properly translate the default value for a prop using VueI18n?
When working with callback functions, you can access the variable $t within the function as it is evaluated in the context of the component being created.
prompt: {
required: false,
type: String,
default: function () {
this.$t('example.prompt.default')
}
}
An issue arises when trying to access the value of $t in the beforeCreate life-cycle hook, where it will be undefined. In such cases, it is recommended to set the default value as the key from your i18n definition (in this case, example.prompt.default) and use this.$t(this.prompt) instead.
You can bring in the VueI18n instance from where it was originally imported.
import i18n from '../i18n'
export default {
name: 'ExampleComponent',
props: [{
prompt: {
required: false,
type: String,
default: i18n.t('example.prompt.default')
}]
}
i18ns.js
import Vue from 'vue'
import VueI18n from 'vue-i18n'
Vue.use(VueI18n)
function loadLocaleMessages () {
const locales = require.context('./locales', true, /[A-Za-z0-9-_,\s]+\.json$/i)
const messages = {}
locales.keys().forEach(key => {
const matched = key.match(/([A-Za-z0-9-_]+)\./i)
if (matched && matched.length > 1) {
const locale = matched[1]
messages[locale] = locales(key)
}
})
return messages
}
export default new VueI18n({
locale: process.env.VUE_APP_I18N_LOCALE || 'en',
fallbackLocale: process.env.VUE_APP_I18N_FALLBACK_LOCALE || 'en',
messages: loadLocaleMessages()
})
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