node-bcc/build/src/bcc/bcc.js

A simple Block Check Character library.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Bcc = void 0;
const helper_1 = require("../helper");
/**
 * This class provides methods for calculating the Block Check Character of a
 * message.
 *
 * @export
 * @class Bcc
 */
class Bcc {
    static calculate(message) {
        let bcc = 0x00;
        if (!Buffer.isBuffer(message) && !helper_1.Helper.checkArray(message)) {
            return -1;
        }
        for (const byte of message) {
            bcc ^= typeof byte === 'string' ? parseInt(byte, 16) : byte;
        }
        return bcc;
    }
}
exports.Bcc = Bcc;
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