strict: no documentation about row length when strict is enabled

[vicradon]

Documentation Is:

• [x] Missing
• [x] Needed
• [ ] Confusing
• [ ] Not Sure?

Please Explain in Detail...

When strict is set to true and the headers supplied are less than the number of headers in the CSV, this error is thrown

RangeError: Row length does not match headers
    at CsvParser.parseLine (/home/runner/TakeHome/node_modules/csv-parser/index.js:163:17)
    at CsvParser._transform (/home/runner/TakeHome/node_modules/csv-parser/index.js:252:16)

For example, given this CSV

First name,Last name
Mocha,Chai
React,Redux

Supplying this data

    const results = await neatCsv(csvData, { separator: ",", skipLines: 1, strict: true, headers: ["First name"]  })

throws the error.

Your Proposal for Changes

Some more documentation on what should be included when strict is set to true.

[TrySound]

You pass only one header in options. This leads to the error.

[vicradon]

@TrySound Must all available headers be passed?

[TrySound]

csv-parser uses either provided headers or passed via options. Strict flag in both cases requires headers count to match columns in each row. From your example it looks like the first row is already a header so you can just remove headers option.

[vicradon]

Alright, thanks