7756 					duration: - gantt.config.duration_step,
7766 				duration: - gantt.config.duration_step,
7773 				duration: -gantt.config.duration_step,
7783 		task.duration = task.duration || gantt.config.duration_step;
7799 		if (item.duration === undefined) {
7800 			item.duration = 1;
7879 			state.$no_end = !(task.end_date || task.duration);
7914 			task.duration = this.calculateDuration(task);
7921 		task.duration = task.duration || 0;
7949 			res += child.duration;
7992 					duration: this.config.duration_step,
9380 …ata.end_date = gantt.calculateEndDate({ start_date: objData.start_date, duration: property, task: …
10227 		var duration = null;
10228 		if (task.duration || task.duration === 0) {
10229 			task.duration = duration = task.duration * 1;
10232 		if (duration) {
10238 					duration: -task.duration,
11842 		calculateEndDate: function (start, duration, unit, task) {
11843 			return timeCalculator.calculateEndDate(start, duration, unit, task);
12440 			duration: -1,
12446 …range.end_date = gantt.calculateEndDate({start_date: range.end_date, duration: 2, unit: unit, step…
12729 		var duration = "<div class='gantt_duration' " + singleDate + ">" +
12734 …adding-top:0px;font-size:inherit;' class='gantt_section_time'>" + time + " " + duration + "</div>";
12741 		var duration = inps[1];
12752 			var duration = _getDuration.call(gantt, node, config);
12753 			var end_date = gantt.calculateEndDate({start_date: start_date, duration: duration, task: ev});
12760 			var value = duration.value;
12767 			duration.value = getFormatter(config).format(value);
12782 		duration.onkeydown = gantt.bind(function(e) {
12800 		duration.onchange = gantt.bind(_calc_date, this);
12808 			duration: 1,
12811 		duration_val = Math.round(ev[mapping.duration]) || gantt.calculateDuration({
12819 		duration.value = duration_val;
12825 		var duration = _getDuration(node, config);
12826 		var endDate = gantt.calculateEndDate({start_date: startDate, duration: duration, task: ev});
12835 			duration: duration
12864 		var duration = node.getElementsByTagName("input")[1];
12866 		duration = getFormatter(config).parse(duration.value);
12867 		if (!duration || window.isNaN(duration)) duration = 1;
12868 		if (duration < 0) duration *= -1;
12869 		return duration;
13216 				end_date = gantt.calculateEndDate({ start_date: start_date, duration: 1, task: ev });
13231 			duration: 1,
13650 				mapping = { start_date: "start_date", end_date: "end_date", duration: "duration" };  property in gantt._resolve_default_mapping.mapping
13934 		duration: new DurationControl(),  property in gantt.form_blocks
14161 		var duration = lightbox_block;
14163 			render: duration.render,
14164 			focus: duration.focus,
14176 					return duration.set_value.call(gantt, node, value, val, section);//set default value
14179 					return duration.set_value.call(gantt, node, value, task, section);
14186 					return duration.get_value.call(gantt, node, task, section);
14227 	gantt.form_blocks.duration_optional = gantt._extend_to_optional(gantt.form_blocks.duration);
14556 …arent || "") + "' start_date='" + obj.start_date + "' duration='" + obj.duration + "' open='" + (!…
14604 				ev.duration = ev.duration / 8;
14606 				if (!ev.duration && !ev.end_date) ev.duration = 1;
15708 				duration:0,  property in module.exports.insertPlaceholder.placeholder
17399 …durationEditorFactory = __webpack_require__(/*! ./editors/duration */ "./sources/core/ui/grid/edit…
17412 		duration: new (durationEditorFactory(gantt))()  property in gantt.config.editor_types
18684 			item.duration = gantt.calculateDuration(item);
18695 				duration: -item.duration,
18711 			item.duration = gantt.calculateDuration(item);
25681 		_calculateMinDuration: function(duration, unit) {
25690 			return Math.ceil(duration / inMs[unit]);
25927 						duration: -1,
25940 						duration: 1,
27376 function CalculateEndDateArgument(start_date, duration, unit, step, task, id, calendar){  argument
27378 	this.duration = duration;
27518 		calculateEndDateArguments: function (start, duration, unit, step) {
27539 					config.duration,
28199 			duration = config.duration,
28206 		var mult = (config.duration >= 0) ? 1 : -1;
28207 		duration = Math.abs(duration * 1);
28208 		return this._calculateEndDate(from, duration, unit, step * mult);
28211 	_calculateEndDate: function (from, duration, unit, step) {  argument
28216 			return this._calculateMinuteEndDate(from, duration, step);
28218 			return this._calculateHourEndDate(from, duration, step);
28220 			var interval = this._addInterval(from, duration, unit, step, null);
28225 	_addInterval: function (start, duration, unit, step, stopAction) {  argument
28228 		while (added < duration && !(stopAction && stopAction(current))) {
28242 	_calculateHourEndDate: function (from, duration,  step) {  argument
28246 		duration = Math.abs(duration * 1);
28248 		var interval = this._addInterval(start, duration, "hour", step, function (date) {
28259 		var durationLeft = duration - added;
28263 			while (added < duration) {
28271 					if (added + hours >= duration) {
28282 		if (added < duration) {
28283 			var durationLeft = duration - added;
28291 	_calculateMinuteEndDate: function (from, duration, step) {  argument
28296 		duration = Math.abs(duration * 1);
28298 		var interval = this._addInterval(start, duration, "minute", step, function (date) {
28309 		if (added < duration) {
28310 			var left = duration - added;
28318 		if (added < duration) {
28319 			var durationLeft = duration - added;
28500 			duration = config.duration,
28504 		return this.$gantt.date.add(start, step * duration, unit);