opstack-kit-chains
Version:
Support your OP-Stack network with 'opstack-kit'
14 lines (11 loc) • 424 B
text/typescript
import type { ErrorType } from '../../errors/utils.js'
import type { Hex } from '../../types/misc.js'
export type IsHexErrorType = ErrorType
export function isHex(
value: unknown,
{ strict = true }: { strict?: boolean | undefined } = {},
): value is Hex {
if (!value) return false
if (typeof value !== 'string') return false
return strict ? /^0x[0-9a-fA-F]*$/.test(value) : value.startsWith('0x')
}