Customize date string delimiter

Feature request:

By default, we use vue-i18n, the string formatted use slash as delimiter, 2018/05/01, we hope to customize it as 2018-05-01.

[swiknaba]

what would be the problem with the standard, if vue-i18n would introduce e.g. separator as an option for dateTimeFormats (as in https://kazupon.github.io/vue-i18n/guide/datetime.html) to allow any custom separator? It is good, to default to a standard, but it should be possible, to customize that.

[Dylan-Israel]

@fengerzh you can just add a custom filter like so.

filters: { delimiter(value: string) { return value.replace(/\//g, '-'); } }