int64-buffer 64-bit Integer Library

int64-buffer is a pure JavaScript library providing classes for reliable manipulation of 64-bit signed and unsigned integers (Int64BE, Uint64BE, Int64LE, Uint64LE). Unlike standard JavaScript numbers, which are IEEE-754 double-precision floats limited to 53 bits of integer precision, this package ensures full 64-bit accuracy. Currently at version 1.1.0, the library appears stable with infrequent but targeted updates, and has no notable release cadence. It stands out by explicitly *not* offering mathematical operations like addition or multiplication; instead, it focuses solely on efficient storage and conversion of 64-bit integers on `Buffer`, `Uint8Array`, or raw `Array` storage. It supports both big-endian (BE) and little-endian (LE) representations and operates without external dependencies, making it a lightweight (3KB minified) and portable solution for scenarios requiring precise 64-bit integer handling, such as parsing binary data streams or network protocols.