| | |
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| | | import moment from 'moment'; |
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| | | import Taro from '@tarojs/taro'; |
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| | | |
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| | | moment.locale('zh-cn'); |
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| | | |
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| | | export class Tools { |
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| | | /** |
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| | | * 显示消息 |
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| | |
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| | | * @return {String} |
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| | | */ |
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| | | static transWeekIndexToDate(year, week, weekDay) { |
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| | | const yearStart = moment([year, 0, 1]); |
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| | | const dayLong = 24 * 60 * 60 * 1000; |
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| | | const firstWeekLong = (7 - yearStart.day()) * dayLong; |
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| | | const weeksLong = (week - 1) * 7 * dayLong; |
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| | | const weekDayLong = weekDay * dayLong; |
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| | | const dayTimestamp = yearStart.valueOf() + firstWeekLong + weeksLong + weekDayLong; |
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| | | return moment(dayTimestamp).format('YYYY-MM-DD'); |
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| | | if (weekDay < 1 && weekDay > 7) { |
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| | | return ''; |
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| | | } |
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| | | const weekDate = moment(year + '-' + week, 'YYYY-WW'); |
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| | | const firstDay = weekDate.startOf('week'); |
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| | | return firstDay.add(weekDay - 1, 'day').format('YYYY-MM-DD'); |
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| | | } |
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| | | |
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| | | /** |
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