Function percentEncodeAfterEncoding

percentEncodeAfterEncoding(
    encoding: string,
    input: string,
    percentEncodeSet: string,
    spaceAsPlus?: boolean,
): string
Implements percent-encode after encoding per WHATWG URL specification.

Important
You must import @exodus/bytes/encoding.js for this API to accept legacy multi-byte encodings.

Encodings utf16-le, utf16-be, and replacement are not accepted.

C0 control percent-encode set is always percent-encoded.

percentEncodeSet is an addition to that, and must be a string of unique increasing codepoints in range 0x20 - 0x7e, e.g. ' "#<>'.

This method accepts DOMStrings and converts them to USVStrings. This is different from e.g. encodeURI and encodeURIComponent which throw on surrogates:
```
> percentEncodeAfterEncoding('utf8', '\ud800', ' "#$%&+,/:;<=>?@[\\]^`{|}') // component
'%EF%BF%BD'
> encodeURIComponent('\ud800')
Uncaught URIError: URI malformed
```
Parameters
- encoding: string
  The encoding label per WHATWG Encoding spec
- input: string
  Input scalar-value string to encode
- percentEncodeSet: string
  A string of ASCII chars to escape in addition to C0 control percent-encode set
- OptionalspaceAsPlus: boolean
  Whether to encode space as '+' instead of '%20' or ' ' (default: false)
Returns string
The percent-encoded string
- Defined in whatwg.d.ts:43