hex-array

Creates Uint8Array buffers from hexadecimal strings, and vice versa.

Installation

npm install hex-array

Usage

  var hexarray = require('hex-array');
  hexarray.toString(new Uint8Array([0xc9, 0x13, 0x4b, 0xca,
                                    0x6a, 0x49, 0xfc, 0xf8,
                                    0x2d, 0x30, 0x3b, 0x4e,
                                    0xa0, 0x26, 0x3a, 0xd8]);
  // = C9134BCA6A49FCF82D303B4EA0263AD8
 
  hexarray.fromString("C9134BCA6A49FCF82D303B4EA0263AD8");     
  // = Uint8Array [ 201, 19, 75, 202, 106, 73, 252, 248, 45, 48, 59, 78, 160, 38, 58, 216 ]

Methods

hexarray.toString(array, [options])

converts the given buffer to a string containing its hexadecimal representation.

array a Uint8Array buffer to convert.

options an optional object with the following members:

• grouping this number of hex bytes are grouped together with spaces between groups. 0 means no grouping is applied. 0 if unspecified.

• rowlength the number of groups which make up a row. When 0, no splitting into rows occurs. 0 if unspecified.

• uppercase if true, the output will be in uppercase. true by default.

return a hexadecimal string representing the buffer.

hexarray.fromString(string)

takes a string containing hexadecimal and returns the equivalent as a Uint8Array buffer.

string The string to convert. Whitespace is ignored. If an odd number of characters are specified, it will act as if preceeded with a leading 0; that is, "FFF" is equivalent to "0FFF".

return a Uint8Array array.

Tests

npm test