feat(isCpf): Add Brazilian CPF validation

[ygorazambuja]

feat(isCpf)

Add Brazilian CPF Validation (Cadastro de Pessoas Fisicas)

Widely used in programs that use personal registration

[codecov]

Codecov Report

Merging #1755 (462c897) into master (4ec30b7) will decrease coverage by 0.09%.
The diff coverage is 91.66%.

@@             Coverage Diff             @@
##            master    #1755      +/-   ##
===========================================
- Coverage   100.00%   99.90%   -0.10%     
===========================================
  Files          102      103       +1     
  Lines         2029     2053      +24     
  Branches       457      462       +5     
===========================================
+ Hits          2029     2051      +22     
- Misses           0        1       +1     
- Partials         0        1       +1     

Impacted Files	Coverage Δ
src/lib/isCpf.js	91.30% <91.30%> (ø)
src/index.js	100.00% <100.00%> (ø)

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[fedeci]

I think this is a sort of VAT number, right?

[ygorazambuja]

I think this is a sort of VAT number, right?

yes, sort of.

[fedeci]

Because I think it would be better to add it to isVAT, then.

[ygorazambuja]

Because I think it would be better to add it to isVAT, then.

its not simple as VAT, CPF Validation require some math calculation, and works only for Brazil.

[fedeci]

Of course it is exclusive to brazil, also in Italy it is called IVA instead of VAT, but the meaning is practically the same. I'd suggest you to implement it in the isVAT file under the brazilian locale.

[ygorazambuja]

Of course it is exclusive to brazil, also in Italy it is called IVA instead of VAT, but the meaning is practically the same. I'd suggest you to implement it in the isVAT file under the brazilian locale.

It will lose its meaning, vat is tax identification number, cpf is registration of individuals.

No Brazilian will search for VAT Validation, they will search for CPF Validation.

I myself didn't know about the existence of VAT until this PR

[fedeci]

Let's ear maintainer's opinions :)
/cc @tux-tn @profnandaa @ezkemboi

[ygorazambuja]

Let's ear maintainer's opinions :) /cc @tux-tn @profnandaa @ezkemboi

sure :)

[tux-tn]

Hello @ygorazambuja and thank you for your PR!
it looks like the CPF validation has already been implemented in isTaxID (see #1613 for more info).

[fedeci]

What is the difference between isTaxID and isVAT?

[tux-tn]

What is the difference between isTaxID and isVAT?

Honestly i don't know, in my country Tax ID and VAT number are the same thing (it's called tax registration number) but it looks like many countries have two separated identifiers. May be we need to dig into this and merge the two validators!

[fedeci]

In Italy they are the same number. Probably it is different just in GB?

[ygorazambuja]

Hello @ygorazambuja and thank you for your PR! it looks like the CPF validation has already been implemented in isTaxID (see #1613 for more info).

it's like that, but I still don't agree with the name of the method, it makes it difficult to adhere to the library (in relation to this specific method of course).

I will close the PR so, thanks for the feedbacks.