mirror of https://github.com/lukechilds/docs.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
27 lines
849 B
27 lines
849 B
var differenceInMonths = require('../difference_in_months/index.js')
|
|
|
|
/**
|
|
* @category Quarter Helpers
|
|
* @summary Get the number of full quarters between the given dates.
|
|
*
|
|
* @description
|
|
* Get the number of full quarters between the given dates.
|
|
*
|
|
* @param {Date|String|Number} dateLeft - the later date
|
|
* @param {Date|String|Number} dateRight - the earlier date
|
|
* @returns {Number} the number of full quarters
|
|
*
|
|
* @example
|
|
* // How many full quarters are between 31 December 2013 and 2 July 2014?
|
|
* var result = differenceInQuarters(
|
|
* new Date(2014, 6, 2),
|
|
* new Date(2013, 11, 31)
|
|
* )
|
|
* //=> 2
|
|
*/
|
|
function differenceInQuarters (dirtyDateLeft, dirtyDateRight) {
|
|
var diff = differenceInMonths(dirtyDateLeft, dirtyDateRight) / 3
|
|
return diff > 0 ? Math.floor(diff) : Math.ceil(diff)
|
|
}
|
|
|
|
module.exports = differenceInQuarters
|
|
|