Formdata is string, but parse resulting is array?

[Robert-Du0001]

Support plan

• Which support plan is this issue covered by? (Community, Sponsor, Enterprise): community
• Currently blocking your project/work? (yes/no): no
• Affecting a production system? (yes/no): no

Context

• Node.js version: v18.16.1
• Formidable exact version: 3.5.0
• Environment (node, browser, native, OS): node
• Used with (popular names of modules):

What are you trying to achieve or the steps to reproduce?

Parsing formdata, I expect the resulting is string instead of array.

Here's the formdata:

--------------------------1a86a97a8a69a7c1
Content-Disposition: form-data; name="operate"

zip
--------------------------1a86a97a8a69a7c1
Content-Disposition: form-data; name="sour"

aaa
--------------------------1a86a97a8a69a7c1
Content-Disposition: form-data; name="bbb"

ccc
--------------------------1a86a97a8a69a7c1--

And here's the code that's processing it:

const formidable = require('formidable');

const form = new formidable.IncomingForm();

form.parse(req, (err, fields, files) => {
  console.log('Fields:', fields);
});

What was the result you got?

The resulting looks like this:

Fields: { operate: [ 'zip' ], sour: [ 'aaa' ], bbb: [ 'ccc' ] }

What result did you expect?

I expected the resulting looks like this:

Fields: { operate: 'zip' , sour:  'aaa' , bbb:  'ccc' }

[GrosSacASac]

Not a bug. Mentioned in changelog Use helper function firstValues to get desired result

[kugruw]

How do I import the helper function firstValues in typescript? @GrosSacASac

[Hyodori04]

I want to use typescript too