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The Deno Standard Library
function decodeVarint32
import { decodeVarint32 } from "";

Given a buf, starting at offset (default: 0), begin decoding bytes as VarInt encoded bytes, for a maximum of 5 bytes (offset + 5). The returned tuple is of the decoded varint 32-bit number, and the new offset with which to continue decoding other data.

VarInts are not 32-bit by default so this should only be used in cases where the varint is assured to be 32-bits. If in doubt, use decode().

To know how many bytes the VarInt took to encode, simply negate offset from the returned new offset.


Example 1

import { decodeVarint32 } from "";

const buf = new Uint8Array([0x8E, 0x02]);
decodeVarint32(buf); // [ 300, 2 ];


buf: Uint8Array

The buffer to decode from.

offset = [UNSUPPORTED]

The offset to start decoding from.


[number, number]

A tuple of the decoded varint 32-bit number, and the new offset.