Calculates the epidemiological week for a given date. Also known as the epi week or CDC week.
npm install epi-weekepi-week
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A tiny module to calculate the epidemiological week (also known as "epi week" or "CDC week") for any given date.
Usage
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var epi = require('epi-week');
epi(new Date(2012, 11, 29)); // returns { week: 52, year: 2012 }
epi(new Date(2012, 11, 30)); // returns { week: 1, year: 2013 }
epi(new Date(2015, 0, 1)); // returns { week: 53, year: 2014 }
Installation
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$ npm install epi-week
Development
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Caveat
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This package is in its infancy, use with caution.