mirror of
https://github.com/pezkuwichain/pezkuwi-common.git
synced 2026-04-22 05:38:03 +00:00
23 lines
822 B
JavaScript
23 lines
822 B
JavaScript
/**
|
|
* @name u8aToHex
|
|
* @summary Creates a hex string from a Uint8Array object.
|
|
* @description
|
|
* `UInt8Array` input values return the actual hex string. `null` or `undefined` values returns an `0x` string.
|
|
* @example
|
|
* <BR>
|
|
*
|
|
* ```javascript
|
|
* import { u8aToHex } from '@pezkuwi/util';
|
|
*
|
|
* u8aToHex(new Uint8Array([0x68, 0x65, 0x6c, 0x6c, 0xf])); // 0x68656c0f
|
|
* ```
|
|
*/
|
|
export function u8aToHex(value, bitLength = -1, isPrefixed = true) {
|
|
const length = Math.ceil(bitLength / 8);
|
|
return `${isPrefixed ? '0x' : ''}${!value?.length
|
|
? ''
|
|
: (bitLength > 0 && value.length > length)
|
|
? `${Buffer.from(value.subarray(0, length / 2)).toString('hex')}…${Buffer.from(value.subarray(value.length - length / 2)).toString('hex')}`
|
|
: Buffer.from(value).toString('hex')}`;
|
|
}
|