2019-02-07から1日間の記事一覧
時間間隔をちょっと考えて class DateInterval { constructor (begin, end) { this.begin = begin; this.end = end; } isInRange (date = new Date) { let b = +this.begin, e = +this.end, d = +date; return b <= d ? d <= e: false; } copy () { return n…
時間間隔をちょっと考えて class DateInterval { constructor (begin, end) { this.begin = begin; this.end = end; } isInRange (date = new Date) { let b = +this.begin, e = +this.end, d = +date; return b <= d ? d <= e: false; } copy () { return n…