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【Vue/I18n】言語切り替えにレスポンスする

Last updated at Posted at 2022-12-20

Vue・I18nで多言語対応開発しているとき、言語切り替えに反応して処理を呼びたい場合にはどうすればいいでしょうか。

答え

watch: {
  '$i18n.locale': function(newLang) {
    //変更時の処理
    //切り替え後の言語はnewLangに
  }
}

なんとwatchの監視対象に文字列を用いると他インスタンスの変数も監視できるんですね。

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