Make valueOrDefault and valueAtIndexOrDefault global

Author: nagix

src/plugins/plugin.legend.js

@@ -7,6 +7,7 @@ var layouts = require('../core/core.layouts');
 
 var noop = helpers.noop;
 var valueOrDefault = helpers.valueOrDefault;
+var valueAtIndexOrDefault = helpers.valueAtIndexOrDefault;
 
 defaults._set('global', {
 	legend: {
@@ -51,8 +52,6 @@ defaults._set('global', {
 					var type = chart.getDatasetMeta(i).type;
 					var options = chart.options;
 					var legendOpts = options.legend;
-					var valueAtIndexOrDefault = helpers.valueAtIndexOrDefault;
-					var valueOrDefault = helpers.valueOrDefault;
 
 					var usePointStyle = legendOpts && legendOpts.labels && legendOpts.labels.usePointStyle;
 					var backgroundColor = usePointStyle ? valueAtIndexOrDefault(dataset.pointBackgroundColor, 0, dataset.backgroundColor) : dataset.backgroundColor;

test/specs/plugin.legend.tests.js

@@ -625,7 +625,7 @@ describe('Legend block tests', function() {
 		});
 	});
 
-	it('should pick up the first item when the propertiy is an array', function() {
+	it('should pick up the first item when the property is an array', function() {
 		var chart = window.acquireChart({
 			type: 'bar',
 			data: {