Cannot read properties of null (reading '0')

Getting help Issues
1

Greetings,

All my functions and the table working as expected however there is error “Cannot read properties of null (reading ‘0’)” keeps on thrown in the console. How do I solve the error shown in the console. I’m able to reproduce the same error using fiddle

Regards,
Harvindran

2

Hi @harvindran.chandrase

On the initialization changes (1st parameter) return null, so reading from changes at

let row = changes[0][0];
let col = this.propToCol(changes[0][1]);

produces the error. You can add an IF to run the code if changes are defined. Updated demo Edit fiddle - JSFiddle - Code Playground

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