isAsciiBase64Char
isAsciiBase64Char(
code):boolean
Defined in: packages/core/src/string/ascii/is-ascii-base64-char.ts:19
Whether code is a character of the base64 or base64url alphabet (RFC 4648
§4/§5: A-Z, a-z, 0-9, plus either +// (base64) or -/_
(base64url) — never padding (=)).
Accepts both alphabets’ extra characters at once: the two alphabets only
differ in those two symbols, so a caller that needs to tell them apart (e.g.
to detect which one a string uses) should test for +// and -/_
directly rather than relying on this predicate alone.
Parameters
Section titled “Parameters”number
Returns
Section titled “Returns”boolean