Accepted answer

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.


You need to put a condition inside the canvas, e.g., show it when the data is loaded or your array.length > 0


<canvas baseChart *ngIf="showMyChart" [datasets]="_numbers"
     [chartType]="_chartType" width="600px">

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