fromHex
Decodes a hex value to a string, number or byte array.
Import
ts
import { fromHex } from 'viem'
Usage
ts
import { fromHex } from 'viem'
fromHex('0x1a4', 'number')
// 420
fromHex('0xc5cf39211876fb5e5884327fa56fc0b75', 'bigint')
// 4206942069420694206942069420694206942069n
fromHex('0x48656c6c6f20776f726c642e', 'string')
// "Hello world"
fromHex('0x48656c6c6f20576f726c6421', 'bytes')
// Uint8Array([72, 101, 108, 108, 111, 32, 87, 111, 114, 108, 100, 33])
fromHex('0x1', 'boolean')
// true
Returns
string | bigint | number | ByteArray
The targeted type.
Parameters
hex
- Type:
Hex
The hex value to decode.
to
- Type:
"string" | "bigint" | "number" | "bytes" | "boolean"
The output type.
Shortcut Functions
hexToNumber
- Type:
Hex
Decodes a hex value to a number.
ts
import { hexToNumber } from 'viem'
hexToNumber('0x1a4')
// 420
hexToBigInt
- Type:
Hex
Decodes a hex value to a bigint.
ts
import { hexToBigInt } from 'viem'
hexToBigInt('0xc5cf39211876fb5e5884327fa56fc0b75')
// 4206942069420694206942069420694206942069n
hexToString
- Type:
Hex
Decodes a hex value to a string.
ts
import { hexToString } from 'viem'
hexToString('0x48656c6c6f20576f726c6421')
// "Hello World!"
hexToBytes
- Type:
Hex
Decodes a hex value to a byte array.
ts
import { hexToBytes } from 'viem'
hexToBytes('0x48656c6c6f20576f726c6421')
// Uint8Array([72, 101, 108, 108, 111, 32, 87, 111, 114, 108, 100, 33])
hexToBool
- Type:
Hex
Decodes a hex value to a boolean.
ts
import { hexToBytes } from 'viem'
hexToBytes('0x1')
// true