Jaco Greeff
6f8c54337b
* Remove all {from,to}Buffer utility methods
* Fix check & test
* Updsate docs
* Bump minor
1.3 KiB
1.3 KiB
number
Utility methods to convert to and from number values
- numberFromHex Creates a Number value from a Buffer object.
- numberToHex Creates a hex value from a number.
- numberToU8a Creates a Uint8Array object from a number.
numberFromHex
Creates a Number value from a Buffer object. (alias of hexToNumber)
numberFromHex (value?: Hex): number
numberToHex
Creates a hex value from a number.
numberToHex (value?: number): string
null/undefined/NaN inputs returns an empty 0x result. number input values return the actual bytes value converted to a hex. With bitLength set, it converts the number to the equivalent size.
import { numberToHex } from '@polkadot/util';
numberToHex(0x1234); // => '0x1234'
numberToHex(0x1234, 32) // => 0x00001234
numberToU8a
Creates a Uint8Array object from a number.
numberToU8a (value?: number, bitLenght: number = -1): Uint8Array
null/undefined/NaN inputs returns an empty Uint8Array result. number input values return the actual bytes value converted to a Uint8Array. With bitLength, it converts the value to the equivalent size.
import { numberToU8a } from '@polkadot/util';
numberToU8a(0x1234); // => [0x12, 0x34]