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Contents
class window.Duration
constructor: (@n, @units)->
after: (date)-> date && Duration.transformDateBy(date, +@n, @units)
before: (date)-> date && Duration.transformDateBy(date, -@n, @units)
ago: -> @before(new Date())
fromNow: -> @after(new Date())
valueOf: ->
switch @units
when 'minutes' then @n * Duration.MINUTE
when 'hours' then @n * Duration.HOUR
when 'days' then @n * Duration.DAY
when 'weeks' then @n * Duration.WEEK
when 'months' then @n * Duration.AVGMONTH
when 'years' then @n * Duration.AVGYEAR
Duration::from = Duration::after
Duration.MINUTE = 60000
Duration.HOUR = Duration.MINUTE * 60
Duration.DAY = Duration.HOUR * 24
Duration.WEEK = Duration.DAY * 7
Duration.AVGMONTH = Duration.WEEK * 4.3452380952381
Duration.AVGYEAR = Duration.DAY * 365
Duration.transformDateBy = (date, n, units)->
[year, month, day] = [date.getFullYear(), date.getMonth(), date.getDate()]
switch units
when 'minutes' then new Date(date.getTime() + (n * Duration.MINUTE))
when 'hours' then new Date(date.getTime() + (n * Duration.HOUR))
when 'days' then new Date(year, month, (day + n))
when 'weeks' then new Date(year, month, (day + (n * 7)))
when 'months'
month = month + n
lastDayOfMonth = new Date(year, month + 1, 0).getDate()
new Date(year, month, Math.min(day, lastDayOfMonth))
when 'years' then new Date(year + n, month, day)
Number::minutes = ()-> new Duration(Number(@), 'minutes')
Number::hours = ()-> new Duration(Number(@), 'hours')
Number::days = ()-> new Duration(Number(@), 'days')
Number::weeks = ()-> new Duration(Number(@), 'weeks')
Number::months = ()-> new Duration(Number(@), 'months')
Number::years = ()-> new Duration(Number(@), 'years')
Number::minutes = Number::minutes
Number::hours = Number::hours
Number::day = Number::days
Number::week = Number::weeks
Number::month = Number::months
Number::year = Number::years
Version data entries
18 entries across 18 versions & 1 rubygems