Issue with Angular and CharJS: TypeError occurs when trying to read property '15' of an undefined value

An error message was encountered as follows:

ERROR TypeError: Cannot read property '15' of undefined
at ChartElement.getPixelForValue (Chart.js:14599)
at ChartElement.updateElement (Chart.js:5930)
at ChartElement.addElementAndReset (Chart.js:3781)
at ChartElement.insertElements (Chart.js:4068)
at ChartElement.resyncElements (Chart.js:4059)
at ChartElement.buildOrUpdateElements (Chart.js:3806)
at Chart.update (Chart.js:9630)

This issue arises when executing chart.update() on an Angular 8 ChartJS chart. It occurs under specific conditions and interestingly, prior to chart.update(), the chart variable appears normal without any errors. Any thoughts on what might be causing the property '15' error and how I could begin debugging this problem?

UPDATE: I am able to replicate the error with property '0' through property '5', indicating that it is not isolated to property '15' but still within the same function.

angulartypescriptchart.jsangular8

Answer №1

Consider reinitializing the chart instead of using chart.update().

To do this, start by removing the current chart.

 reinitializeChart ()=>{    
   chart.destroy();
   //write code to create a new chart
 }

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