tools/eslint/node_modules/escope/node_modules/es6-weak-map/node_modules/es5-ext/date/#/days-in-month.js


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'use strict';

var getMonth = Date.prototype.getMonth;

module.exports = function () {
	switch (getMonth.call(this)) {
	case 1:
		return this.getFullYear() % 4 ? 28 : 29;
	case 3:
	case 5:
	case 8:
	case 10:
		return 30;
	default:
		return 31;
	}
};