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axyz/perfectRowsNumber.js

Created August 29, 2015 18:42
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perfectRowsNumber.js
function _perfectRowsNumber(photos, screenWidth, screenHeight) {
const idealHeight = parseInt(screenHeight / 2, 10);
const totalWidth = photos.reduce((sum, img) => sum + img.ratio * idealHeight, 0);
return Math.round(totalWidth / screenWidth);
}
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