18 lines
250 B
JavaScript
18 lines
250 B
JavaScript
"use strict";
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var getMonth = Date.prototype.getMonth;
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module.exports = function () {
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switch (getMonth.call(this)) {
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case 1:
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return this.getFullYear() % 4 ? 28 : 29;
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case 3:
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case 5:
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case 8:
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case 10:
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return 30;
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default:
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return 31;
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}
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};
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