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node + javascript で今日の日付を文字列に変換する、YMD形式で出力する例 #javascript #node

Last updated at Posted at 2020-02-23

なにやら strftime 的な YMD 形式でうまく区切るメソッドはなさそう?

node


> new Date().toISOString().split('T')[0]
'2020-02-22'

> new Date().toDateString()
'Sat Feb 22 2020'

> new Date().toDateString()
'Sat Feb 22 2020'

> new Date().toGMTString()
'Sat, 22 Feb 2020 08:43:15 GMT'

> new Date().toISOString()
'2020-02-22T08:43:22.536Z'

> new Date().toJSON()
'2020-02-22T08:43:31.867Z'

> new Date().toLocaleDateString()
'2/22/2020'

> new Date().toLocaleTimeString()
'5:43:53 PM'

> new Date().toLocaleString()
'2/22/2020, 5:44:00 PM'

> new Date().toString()
'Sat Feb 22 2020 17:44:09 GMT+0900 (Japan Standard Time)'

> new Date().toTimeString()
'17:44:15 GMT+0900 (Japan Standard Time)'

> new Date().toUTCString()
'Sat, 22 Feb 2020 08:44:22 GMT'

こんな prototype の関数が見つかるが、採用されなかったのだろうか

Date.prototype.toLocaleFormat() - JavaScript | MDN

Original by Github issue

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