Improve various #toString() functions.

src/color/Color.js

@@ -173,15 +173,15 @@ var Color = this.Color = Base.extend(new function() {
 		},
 
 		toString: function() {
-			var string = '';
+			var parts = [];
 			for (var i = 0, l = this._components.length; i < l; i++) {
 				var component = this._components[i];
 				var value = this['_' + component];
 				if (component === 'alpha' && value == null)
 					value = 1;
-				string += (i > 0 ? ', ' : '') + component + ': ' + value;
+				parts.push(component + ': ' + value);
 			}
-			return '{ ' + string + ' }';
+			return '{ ' + parts.join(', ') + ' }';
 		},
 
 		toCssString: function() {

src/path/Curve.js

@@ -216,13 +216,13 @@ var Curve = this.Curve = Base.extend({
 	},
 
 	toString: function() {
-		return '{ point1: ' + this._segment1._point
-				+ (!this._segment1._handleOut.isZero()
-					? ', handle1: ' + this._segment1._handleOut : '')
-				+ (this._segment2._handleIn.isZero()
-					? ', handle2: ' + this._segment2._handleIn : '')
-				+ ', point2: ' + this._segment2._point
-				+ ' }';
+		var parts = [ 'point1: ' + this._segment1._point ];
+		if (!this._segment1._handleOut.isZero())
+			parts.push('handle1: ' + this._segment1._handleOut);
+		if (!this._segment2._handleIn.isZero())
+			parts.push('handle2: ' + this._segment2._handleIn);
+		parts.push('point2: ' + this._segment2._point);
+		return '{ ' + parts.join(', ') + ' }';
 	},
 
 	statics: {

src/path/CurveLocation.js

@@ -139,6 +139,6 @@ CurveLocation = Base.extend({
 		var parameter = this.getParameter();
 		if (parameter != null)
 			parts.push('parameter: ' + parameter);
-		return '{ ' + parts.join(', ') + ' }'
+		return '{ ' + parts.join(', ') + ' }';
 	}
 });

src/path/Segment.js

@@ -230,12 +230,12 @@ var Segment = this.Segment = Base.extend({
 	},
 
 	toString: function() {
-		return '{ point: ' + this._point
-				+ (!this._handleIn.isZero()
-					? ', handleIn: ' + this._handleIn : '')
-				+ (this._handleOut.isZero()
-					? ', handleOut: ' + this._handleOut : '')
-				+ ' }';
+		var parts = [ 'point: ' + this._point ];
+		if (!this._handleIn.isZero())
+			parts.push('handleIn: ' + this._handleIn);
+		if (!this._handleOut.isZero())
+			parts.push('handleOut: ' + this._handleOut);
+		return '{ ' + parts.join(', ') + ' }';
 	},
 
 	_transformCoordinates: function(matrix, coords, change) {