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Frontent dev env (#247)
* Added frontend development files/environment * More items-categories related removals * Improvements in pages templates (inc. static pages) * Improvements in video player * Added empty home page message + cta * Updates in media, playlist and management pages * Improvements in material icons font loading * Replaced media & playlists links in frontend dev-env * frontend package version update * chnaged frontend dev url port * static files update * Changed default position of theme switcher * enabled frontend docker container
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frontend/src/static/js/utils/helpers/math.js
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frontend/src/static/js/utils/helpers/math.js
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export const isGt = (x, y) => x > y;
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export const isZero = (x) => 0 === x;
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export const isNumber = (x) => !isNaN(x) && x === 0 + x;
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export const isInteger = (x) => x === Math.trunc(x);
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export const isPositive = (x) => isGt(x, 0);
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export const isPositiveNumber = (x) => isNumber(x) && isPositive(x);
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export const isPositiveInteger = (x) => isInteger(x) && isPositive(x);
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export const isPositiveIntegerOrZero = (x) => isInteger(x) && (isPositive(x) || isZero(x));
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export const greaterCommonDivision = (a, b) => (!b ? a : greaterCommonDivision(b, a % b));
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