Performance of mergeLocaleMessage

[cslee]

vue-i18n/src/index.js

Line 615 in 048eac5

this._vm.$set(this._vm.messages, locale, merge({}, this._vm.messages[locale] || {}, message))

@kazupon Could the line in mergeLocaleMessage above be changed to something like this for better performance? I use this method a lot in my components so this is quite important to me. Thank you so much.

    this._vm.$set(this._vm.messages, locale, merge(
      typeof this._vm.messages[locale] !== 'undefined' && Object.keys(this._vm.messages[locale]).length
        ? this._vm.messages[locale]
        : {},
      message
    ))

[kazupon]

I've just released v8.22.4
You can check it :)