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27 lines
814 B
27 lines
814 B
var differenceInDays = require('../difference_in_days/index.js') |
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/** |
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* @category Week Helpers |
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* @summary Get the number of full weeks between the given dates. |
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* |
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* @description |
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* Get the number of full weeks between the given dates. |
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* |
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* @param {Date|String|Number} dateLeft - the later date |
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* @param {Date|String|Number} dateRight - the earlier date |
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* @returns {Number} the number of full weeks |
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* |
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* @example |
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* // How many full weeks are between 5 July 2014 and 20 July 2014? |
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* var result = differenceInWeeks( |
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* new Date(2014, 6, 20), |
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* new Date(2014, 6, 5) |
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* ) |
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* //=> 2 |
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*/ |
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function differenceInWeeks (dirtyDateLeft, dirtyDateRight) { |
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var diff = differenceInDays(dirtyDateLeft, dirtyDateRight) / 7 |
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return diff > 0 ? Math.floor(diff) : Math.ceil(diff) |
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} |
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module.exports = differenceInWeeks
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