Allow for comma in last row of data

[vikjung]

Process data with comma on the last row of data so dont have to do specific logic to identify last row for bar charts I am using it inside a lit component

data='[["Month", "Days"], ["Jan", 31],["Feb", 28]]' --- works
data='[["Month", "Days"], ["Jan", 31],["Feb", 28],]' --- fails

[rslawik]

The component uses JSON.parse which does not accept trailing commas. Providing a custom parser would be fairly complex and could increase the code size significantly.

I am using it inside a lit component

In that case, the input can use a property binding and pass the array object without serialization.

<google-chart .data="${this.inputArray}"></google-chart>