15 lines
295 B
JavaScript
15 lines
295 B
JavaScript
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export default (function (o, c) {
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var proto = c.prototype;
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proto.isoWeeksInYear = function () {
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var isLeapYear = this.isLeapYear();
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var last = this.endOf('y');
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var day = last.day();
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if (day === 4 || isLeapYear && day === 5) {
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return 53;
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}
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return 52;
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};
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});
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