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-rw-r--r--public/javascripts/getWeek.js33
1 files changed, 0 insertions, 33 deletions
diff --git a/public/javascripts/getWeek.js b/public/javascripts/getWeek.js
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--- a/public/javascripts/getWeek.js
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@@ -1,33 +0,0 @@
-// copied from http://www.meetingpointmco.nl/Roosters-AL/doc/dagroosters/untisscripts.js,
-// were using the same code as they do to be sure that we always get the same
-// week number.
-function getWeek () {
- // Create a copy of this date object
- const target = new Date()
-
- // ISO week date weeks start on monday
- // so correct the day number
- const dayNr = (target.getDay() + 6) % 7
-
- // ISO 8601 states that week 1 is the week
- // with the first thursday of that year.
- // Set the target date to the thursday in the target week
- target.setDate(target.getDate() - dayNr + 3)
-
- // Store the millisecond value of the target date
- const firstThursday = target.valueOf()
-
- // Set the target to the first thursday of the year
- // First set the target to january first
- target.setMonth(0, 1)
- // Not a thursday? Correct the date to the next thursday
- if (target.getDay() !== 4) {
- target.setMonth(0, 1 + ((4 - target.getDay()) + 7) % 7)
- }
-
- // The weeknumber is the number of weeks between the
- // first thursday of the year and the thursday in the target week
- return 1 + Math.ceil((firstThursday - target) / 604800000) // 604800000 = 7 * 24 * 3600 * 1000
-}
-
-module.exports = getWeek