Request: extend ESLint's valid-typeof rule to accept "bigint" as a valid comparison value

[fmartin5]

Some people are starting to use typeof with "bigint" in their code, but ESLint's valid-typeof rule does not accept it, and ESLint will not support it until the proposal for BigInt reaches stage 4 (it's currently in stage 3).

Then someone at ESLint suggested to check eslint-plugin-babel for an augmented rule:

Your best chance at this point is to use babel-eslint (to parse literals), as well as to see if there is a rule in eslint-plugin-babel which augments valid-typeof to support big integers.

[GeneralYouri]

Seconded, it's annoying to have to disable rules or go through other loop holes just to be able to work with BigInts.

The 'no-undef' rule can be bypassed by adding BigInt to ESLint globals, which stops it from reporting the use of the BigInt constructor, which is a reasonable workaround. But for the 'valid-typeof' rule I don't see a workaround other than disabling this rule either globally or locally, which really sucks either way.

I'd easily use eslint-plugin-babel even if all it did was augment that one rule for me.