Can't access object property, even though it shows up in a console log

Question

Below, you can see the output from these two logs. The first clearly shows the full object with the property I\'m trying to access, but on the very next line of code, I can\

Answer 1

I just encountered this issue with objects generated by csv-parser from a CSV file that was generated by MS Excel. I was able to access all properties except the first property - but it would show up ok if I wrote the whole object using console.log.

Turned out that the UTF-8 CSV format inserts 3 bytes (ef bb bf) at the start corresponding to an invisible character - which were being included as part of the first property header by csv-parser. Solution was to re-generate the CSV using the non-UTF option and this eliminated the invisible character.