v15.1.3

Fixes cferdinandi#454. When speed is `0`, Nan/Infinity value was breaking calculations. This forces the number to 0 in those situations.

Author: cferdinandi

dist/smooth-scroll.js

@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v15.1.2
+ * smooth-scroll v15.1.3
  * Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
@@ -271,7 +271,7 @@
 		var speed = settings.speedAsDuration ? settings.speed : Math.abs(distance / 1000 * settings.speed);
 		if (settings.durationMax && speed > settings.durationMax) return settings.durationMax;
 		if (settings.durationMin && speed < settings.durationMin) return settings.durationMin;
-		return speed;
+		return parseInt(speed, 10);
 	};
 
 	var setHistory = function (options) {
@@ -404,6 +404,9 @@
 		 */
 		smoothScroll.animateScroll = function (anchor, toggle, options) {
 
+			// Cancel any in progress scrolls
+			smoothScroll.cancelScroll();
+
 			// Local settings
 			var _settings = extend(settings || defaults, options || {}); // Merge user options with defaults
 
@@ -462,7 +465,7 @@
 			var loopAnimateScroll = function (timestamp) {
 				if (!start) { start = timestamp; }
 				timeLapsed += timestamp - start;
-				percentage = (timeLapsed / parseInt(speed, 10));
+				percentage = speed === 0 ? 0 : (timeLapsed / speed);
 				percentage = (percentage > 1) ? 1 : percentage;
 				position = startLocation + (distance * easingPattern(_settings, percentage));
 				window.scrollTo(0, Math.floor(position));

dist/smooth-scroll.min.js

@@ -1,5 +1,5 @@
 /*!
- * smooth-scroll v15.1.2
+ * smooth-scroll v15.1.3
  * Animate scrolling to anchor links
  * (c) 2018 Chris Ferdinandi
  * MIT License
@@ -341,7 +341,7 @@ if (window.Element && !Element.prototype.closest) {
 		var speed = settings.speedAsDuration ? settings.speed : Math.abs(distance / 1000 * settings.speed);
 		if (settings.durationMax && speed > settings.durationMax) return settings.durationMax;
 		if (settings.durationMin && speed < settings.durationMin) return settings.durationMin;
-		return speed;
+		return parseInt(speed, 10);
 	};
 
 	var setHistory = function (options) {
@@ -474,6 +474,9 @@ if (window.Element && !Element.prototype.closest) {
 		 */
 		smoothScroll.animateScroll = function (anchor, toggle, options) {
 
+			// Cancel any in progress scrolls
+			smoothScroll.cancelScroll();
+
 			// Local settings
 			var _settings = extend(settings || defaults, options || {}); // Merge user options with defaults
 
@@ -532,7 +535,7 @@ if (window.Element && !Element.prototype.closest) {
 			var loopAnimateScroll = function (timestamp) {
 				if (!start) { start = timestamp; }
 				timeLapsed += timestamp - start;
-				percentage = (timeLapsed / parseInt(speed, 10));
+				percentage = speed === 0 ? 0 : (timeLapsed / speed);
 				percentage = (percentage > 1) ? 1 : percentage;
 				position = startLocation + (distance * easingPattern(_settings, percentage));
 				window.scrollTo(0, Math.floor(position));