feross / buffer

Types: Using Uint8Array instead of Buffer

The API supports at various places to use Uint8Arrays to be used instead of Buffers. This PR loosens the type restrictions on a few instances where I noticed that an Uint8Array would suffice.

add length check in Buffer.concat

Since Buffer now supports the BigInt methods and the code for that uses the exponentiation operator, I'm going to drop support for IE11 and Safari 9-10.

Further changes I needed to make:

- Use consistent shifting to floor the offset numbers, like we do for other methods
- Remove all BigInt literals in favor of using a BigInt constructor – this fixes parse errors in older browsers like Safari 11
- Disable Node tests in Safari 11 and 12 since they use BigInt literal syntax

This commit contains fixes for PR #267

…se2-rw-bigint