viem-goviem-go

size

Returns the size of a hex string or byte slice in bytes

size

Returns the size of a hex string or byte slice in bytes.

Import

import "github.com/ChefBingbong/viem-go/utils/data"

Usage

import "github.com/ChefBingbong/viem-go/utils/data"


// Get size of hex string
size := data.SizeHex("0x0102")
// 2


// Get size of byte slice
size := data.SizeBytes([]byte{0x01, 0x02, 0x03})
// 3


// Generic size function (works with both)
size := data.Size("0x0102")
// 2


size = data.Size([]byte{0x01, 0x02})
// 2

Returns

  • Type: int

The size in bytes. For hex strings, calculates the byte length from hex characters (rounds up for odd lengths).

Parameters

value (required)

  • Type: string for SizeHex, []byte for SizeBytes, any for Size

The hex string or byte slice to measure.

// Hex string size
size := data.SizeHex("0x0102")
// 2


// Byte slice size
size := data.SizeBytes([]byte{0x01, 0x02, 0x03})
// 3


// Generic size (auto-detects type)
size := data.Size("0x0102")
// 2


size = data.Size([]byte{0x01, 0x02})
// 2

Notes

  • For hex strings, the size is calculated as (hexLength + 1) / 2 to handle odd-length hex strings
  • Empty hex strings ("0x") return 0
  • The hex string should have a 0x prefix