context.lineWidth = this.options.axisLineWidth;
if (this.options.drawYAxis) {
- if (this.layout.yticks) {
+ if (this.layout.yticks && this.layout.yticks.length > 0) {
for (var i = 0; i < this.layout.yticks.length; i++) {
var tick = this.layout.yticks[i];
if (typeof(tick) == "function") return;