fill: function()

in TestApplications/Web/js/lib/components/bootstrap-datepicker.js [737:861]
112 lines of code
30 McCabe index (conditional complexity)

		fill: function(){
			var d = new Date(this.viewDate),
				year = d.getUTCFullYear(),
				month = d.getUTCMonth(),
				startYear = this.o.startDate !== -Infinity ? this.o.startDate.getUTCFullYear() : -Infinity,
				startMonth = this.o.startDate !== -Infinity ? this.o.startDate.getUTCMonth() : -Infinity,
				endYear = this.o.endDate !== Infinity ? this.o.endDate.getUTCFullYear() : Infinity,
				endMonth = this.o.endDate !== Infinity ? this.o.endDate.getUTCMonth() : Infinity,
				todaytxt = dates[this.o.language].today || dates['en'].today || '',
				cleartxt = dates[this.o.language].clear || dates['en'].clear || '',
				tooltip;
			this.picker.find('.datepicker-days thead th.datepicker-switch')
						.text(dates[this.o.language].months[month]+' '+year);
			this.picker.find('tfoot th.today')
						.text(todaytxt)
						.toggle(this.o.todayBtn !== false);
			this.picker.find('tfoot th.clear')
						.text(cleartxt)
						.toggle(this.o.clearBtn !== false);
			this.updateNavArrows();
			this.fillMonths();
			var prevMonth = UTCDate(year, month-1, 28),
				day = DPGlobal.getDaysInMonth(prevMonth.getUTCFullYear(), prevMonth.getUTCMonth());
			prevMonth.setUTCDate(day);
			prevMonth.setUTCDate(day - (prevMonth.getUTCDay() - this.o.weekStart + 7)%7);
			var nextMonth = new Date(prevMonth);
			nextMonth.setUTCDate(nextMonth.getUTCDate() + 42);
			nextMonth = nextMonth.valueOf();
			var html = [];
			var clsName;
			while (prevMonth.valueOf() < nextMonth){
				if (prevMonth.getUTCDay() === this.o.weekStart){
					html.push('<tr>');
					if (this.o.calendarWeeks){
						// ISO 8601: First week contains first thursday.
						// ISO also states week starts on Monday, but we can be more abstract here.
						var
							// Start of current week: based on weekstart/current date
							ws = new Date(+prevMonth + (this.o.weekStart - prevMonth.getUTCDay() - 7) % 7 * 864e5),
							// Thursday of this week
							th = new Date(Number(ws) + (7 + 4 - ws.getUTCDay()) % 7 * 864e5),
							// First Thursday of year, year from thursday
							yth = new Date(Number(yth = UTCDate(th.getUTCFullYear(), 0, 1)) + (7 + 4 - yth.getUTCDay())%7*864e5),
							// Calendar week: ms between thursdays, div ms per day, div 7 days
							calWeek =  (th - yth) / 864e5 / 7 + 1;
						html.push('<td class="cw">'+ calWeek +'</td>');

					}
				}
				clsName = this.getClassNames(prevMonth);
				clsName.push('day');

				if (this.o.beforeShowDay !== $.noop){
					var before = this.o.beforeShowDay(this._utc_to_local(prevMonth));
					if (before === undefined)
						before = {};
					else if (typeof(before) === 'boolean')
						before = {enabled: before};
					else if (typeof(before) === 'string')
						before = {classes: before};
					if (before.enabled === false)
						clsName.push('disabled');
					if (before.classes)
						clsName = clsName.concat(before.classes.split(/\s+/));
					if (before.tooltip)
						tooltip = before.tooltip;
				}

				clsName = $.unique(clsName);
				html.push('<td class="'+clsName.join(' ')+'"' + (tooltip ? ' title="'+tooltip+'"' : '') + '>'+prevMonth.getUTCDate() + '</td>');
				if (prevMonth.getUTCDay() === this.o.weekEnd){
					html.push('</tr>');
				}
				prevMonth.setUTCDate(prevMonth.getUTCDate()+1);
			}
			this.picker.find('.datepicker-days tbody').empty().append(html.join(''));

			var months = this.picker.find('.datepicker-months')
						.find('th:eq(1)')
							.text(year)
							.end()
						.find('span').removeClass('active');

			$.each(this.dates, function(i, d){
				if (d.getUTCFullYear() === year)
					months.eq(d.getUTCMonth()).addClass('active');
			});

			if (year < startYear || year > endYear){
				months.addClass('disabled');
			}
			if (year === startYear){
				months.slice(0, startMonth).addClass('disabled');
			}
			if (year === endYear){
				months.slice(endMonth+1).addClass('disabled');
			}

			html = '';
			year = parseInt(year/10, 10) * 10;
			var yearCont = this.picker.find('.datepicker-years')
								.find('th:eq(1)')
									.text(year + '-' + (year + 9))
									.end()
								.find('td');
			year -= 1;
			var years = $.map(this.dates, function(d){
					return d.getUTCFullYear();
				}),
				classes;
			for (var i = -1; i < 11; i++){
				classes = ['year'];
				if (i === -1)
					classes.push('old');
				else if (i === 10)
					classes.push('new');
				if ($.inArray(year, years) !== -1)
					classes.push('active');
				if (year < startYear || year > endYear)
					classes.push('disabled');
				html += '<span class="' + classes.join(' ') + '">'+year+'</span>';
				year += 1;
			}
			yearCont.html(html);
		},