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stargt/getWeekOfYear.js

Created November 8, 2019 14:06
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getWeekOfYear.js
Math.floor(((new Date('2019-01-01')).getDay()*24*60*60*1000 + (new Date('2019-11-08')).getTime() - (new Date('2019-01-01')).getTime())/1000/60/60/24/7 + 1)
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