49 lines
1.2 KiB
JavaScript
49 lines
1.2 KiB
JavaScript
export var minute = 60; // in seconds
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export var hour = 60 * minute; // in seconds
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export var day = 24 * hour; // in seconds
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// https://www.quora.com/What-is-the-average-number-of-days-in-a-month
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export var month = 30.44 * day; // in seconds
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// "400 years have 146097 days (taking into account leap year rules)"
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export var year = 146097 / 400 * day; // in seconds
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/**
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* Returns a step of gradation corresponding to the unit.
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* @param {Object[]} gradation
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* @param {string} unit
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* @return {?Object}
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*/
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export function getStep(gradation, unit) {
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for (var _iterator = gradation, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
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var _ref;
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if (_isArray) {
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if (_i >= _iterator.length) break;
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_ref = _iterator[_i++];
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} else {
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_i = _iterator.next();
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if (_i.done) break;
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_ref = _i.value;
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}
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var step = _ref;
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if (step.unit === unit) {
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return step;
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}
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}
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}
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/**
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* Converts value to a `Date`
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* @param {(number|Date)} value
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* @return {Date}
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*/
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export function getDate(value) {
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return value instanceof Date ? value : new Date(value);
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}
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//# sourceMappingURL=helpers.js.map
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