web3x/utils/hex-bytes.js

Typescript port of web3.js

"use strict";
/*
  This file is part of web3x.

  web3x is free software: you can redistribute it and/or modify
  it under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  web3x is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with web3x.  If not, see <http://www.gnu.org/licenses/>.
*/
Object.defineProperty(exports, "__esModule", { value: true });
const hex_1 = require("./hex");
/**
 * Convert a byte array to a hex string
 *
 * Note: Implementation from crypto-js
 *
 * @method bytesToHex
 * @param {Array} bytes
 * @return {String} the hex string
 */
function bytesToHex(bytes, prefix = true) {
    const hex = [];
    for (const byte of bytes) {
        /* jshint ignore:start */
        hex.push((byte >>> 4).toString(16));
        hex.push((byte & 0xf).toString(16));
        /* jshint ignore:end */
    }
    return prefix ? '0x' + hex.join('') : hex.join('');
}
exports.bytesToHex = bytesToHex;
/**
 * Convert a hex string to a byte array
 *
 * Note: Implementation from crypto-js
 *
 * @method hexToBytes
 * @param {string} hex
 * @return {Array} the byte array
 */
function hexToBytes(hex, prefix = true) {
    if ((prefix && !hex_1.isHexStrict(hex)) || !hex_1.isHex(hex)) {
        throw new Error('Given value "' + hex + '" is not a valid hex string.');
    }
    hex = hex.replace(/^0x/i, '');
    const bytes = [];
    for (let c = 0; c < hex.length; c += 2) {
        bytes.push(parseInt(hex.substr(c, 2), 16));
    }
    return bytes;
}
exports.hexToBytes = hexToBytes;
//# sourceMappingURL=data:application/json;base64,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