17 lines
519 B
JavaScript
17 lines
519 B
JavaScript
var helperCreateGetDateWeek = require('./helperCreateGetDateWeek')
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/**
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* 返回某个年份的第几周
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*
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* @param {Date} date 日期或数字
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* @param {Number} firstDay 从年初的星期几为起始开始周开始算，默认星期一
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* @return {Number}
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*/
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var getYearWeek = helperCreateGetDateWeek(function (targetDate) {
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return new Date(targetDate.getFullYear(), 0, 1)
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}, function (date1, date2) {
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return date1.getFullYear() !== date2.getFullYear()
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})
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module.exports = getYearWeek
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