@conflux-dev/conflux-address-js/lib/utils.js

The encoder and decoder for Conflux Network address

"use strict";

exports.isHexString = function (v) {
  return typeof v === 'string' && v.match(/^0x[0-9A-Fa-f]*$/);
};

exports.isString = function (data) {
  return typeof data === 'string';
}; // input should has no 0x prefix


exports.hexToBytes = function (hex) {
  var bytes = new Uint8Array(hex.length / 2);

  for (var c = 0; c < hex.length; c += 2) {
    bytes[c / 2] = parseInt(hex.substring(c, c + 2), 16);
  }

  return bytes;
}; // output with no 0x prefix


exports.bytesToHex = function (uint8Array) {
  var hexString = '';

  for (var i = 0; i < uint8Array.length; i++) {
    var hex = uint8Array[i].toString(16);

    if (hex.length === 1) {
      hex = '0' + hex;
    }

    hexString += hex;
  }

  return hexString;
}; // decode utf8 string to bytes


exports.decodeUTF8 = function (data) {
  var encoder = new TextEncoder();
  return encoder.encode(data);
};