9👍
✅
labels
property must be defined along with values. According to documentation for properties:
labels (?Array) – x axis labels. It’s necessary for charts: line, bar and radar.
So specifying actual values for labels will do the trick.
1👍
You need to put a condition inside the canvas, e.g., show it when the data is loaded or your array.length > 0
Example:
<canvas baseChart *ngIf="showMyChart" [datasets]="_numbers"
[chartType]="_chartType" width="600px">
</canvas>
Source:stackexchange.com