Top 10 Examples of "crc in functional component" in JavaScript
Dive into secure and efficient coding practices with our curated list of the top 10 examples showcasing 'crc' in functional components in JavaScript. Our advanced machine learning engine meticulously scans each line of code, cross-referencing millions of open source libraries to ensure your implementation is not just functional, but also robust and secure. Elevate your React applications to new heights by mastering the art of handling side effects, API calls, and asynchronous operations with confidence and precision.
import crc32 from 'crc/crc32';
import crc from 'crc';
// eslint-disable-next-line no-console
console.log(crc32('hello world'), crc.crc32('hello world'));rd++
// see how many bytes we will be processing in this chunk
let chunk = Math.min(7, data.length - rd)
for (let i = 0; i < chunk; ++i)
{
data[w] = data[rd] | ( (bits & (1 << i)) ? 0x80 : 0 )
rd++
w++
}
}
let crc1 = data[0] | (data[1] << 8)
data = data.slice(2, w)
let crc2 = crc16ccitt(data)
if (crc1 === crc2)
{
this.emitter.emit('in-sysex', data)
}
else
{
console.log('SYSEX BAD CRC', crc1, crc2, data)
}
}
break
default:
console.log('Unknown MIDI data', data)
break
}init() {
let loc = window.location.pathname.replace(/^\//, '');
if (loc.length > 0) {
let [pin, crc] = loc.split('_');
if (crc32(pin).toString(16).toLowerCase() === crc.toLowerCase()) {
window.history.pushState({}, '', '/'); // to remove pathname
this.storage.delete(['authToken']);
this._currentScreen = 'login';
this.loginWithPin(pin)
.then(() => {
this.init(); // Should not enter endless loop because path should be empty here.
})
.catch((e) => {
console.error(e);
this.metrika.track(MetrikaService.LOAD_ERROR, {
type: 'state-init-login',
request: 'confirmRegistration',
message: e.toString()
});
});
return;var onData = function (pdu) {
this.log.debug('received data')
if (crc.crc16modbus(pdu) === 0) { /* PDU is valid if CRC across whole PDU equals 0, else ignore and do nothing */
this.emit('data', pdu.slice(1))
}
}.bind(this)canvas.drawImage(this._video, 0, 0, canvasElement.width, canvasElement.height);
let imageData = canvas.getImageData(0, 0, canvasElement.width, canvasElement.height);
let code = jsQR(imageData.data, imageData.width, imageData.height, {
inversionAttempts: 'dontInvert',
});
if (code) {
let pincode = '';
let data = code.data.match(/^https?:\/\/(.*?)\/(\d+)_([\da-f]+)$/i);
if (data) {
if (data[1].split(':')[0] === 'localhost') { // local debug
pincode = data[2];
} else {
if (
data[1].split(':')[0] === location.host &&
crc32(data[2]).toString(16).toLowerCase() === data[3].toLowerCase()
) {
pincode = data[2];
}
}
}
if (pincode.length > 0) {
this._stopVideo();
this._video.pause();
this._onPinReceived(pincode);
return;
}
}
}
requestAnimationFrame(tick);let pairs = [];
forOwn(object, (value, key) => {
if (value !== undefined && value !== null) {
pairs.push([key, value]);
}
});
if (!pairs.length) {
return EMPTY_HASH;
}
// Consistant key/value pair ordering
pairs = sortBy(pairs, pair => pair[0]);
// eslint-disable-next-line no-magic-numbers
return crc32(JSON.stringify(pairs)).toString(16);
}async function ensureScenarioLoadedForInstance ({
bundleId,
instance,
modifications,
scenarioId,
workerVersion,
profileRequest,
updateStatus
}) {
// hash the modifications to detect any changes that have taken place
const scenarioHash = crc32(JSON.stringify(modifications))
// Maybe one day we'll check if anything relevant (the street network) has changed,
// that would be a performance win
if (scenarioHash !== instance.scenarioHash || workerVersion !== instance.workerVersion) {
debug(`scenario ${scenarioId} has changed, updating browsochrones`)
updateStatus(APPLYING_SCENARIO)
const scenarioUniqueId = `${scenarioId}-${scenarioHash}`
const request = getStaticSiteRequest({ modifications, bundleId, scenarioUniqueId, workerVersion, profileRequest })
// TODO don't duplicate these fields
const { jobId } = request
const body = {
request,
graphId: bundleId,
workerVersion,
jobId
}Object.keys(obj).forEach(function(key){
var val = obj[key];
if (0 == val.indexOf('j:')) {
try {
hashes[key] = crc16(val); // only crc json cookies for now
obj[key] = JSON.parse(val.slice(2));
} catch (err) {
// nothing
}
}
});BleBeanSerial.prototype.sendCmd = function(cmdBuffer,payloadBuffer,done) {
var sizeBuffer = new Buffer(2);
sizeBuffer.writeUInt8(cmdBuffer.length + payloadBuffer.length,0);
sizeBuffer.writeUInt8(0,1);
//GST contains sizeBuffer, cmdBuffer, and payloadBuffer
var gst = Buffer.concat([sizeBuffer,cmdBuffer,payloadBuffer]);
var crcString = crc.crc16ccitt(gst);
var crc16Buffer = new Buffer(2);
crc16Buffer.writeUInt16LE(crcString, 0);
gst = Buffer.concat([sizeBuffer,cmdBuffer,payloadBuffer,crc16Buffer]);
var gt_qty = Math.floor(gst.length/19);
if (gst.length % 19 != 0) {
gt_qty += 1;
}
var optimal_packet_size = 19;
for (var ch=0; ch{
outBuff.writeInt8(0, outOffset);
outOffset ++;
data.copy(outBuff, outOffset);
}
else
{
outBuff.write(data, outOffset);
}
outOffset += data.length;
}
var crcVal = 0xffffffff;
crcVal = crc.crcjam(typeSignature, crcVal);
crcVal = crc.crcjam(data, crcVal);
// CRC
outBuff.writeInt32BE(crcVal ^ 0xffffffff, outOffset);
outOffset += 4;
// Writes the IDAT chunk after the zTXt
outBuff.writeInt32BE(length, outOffset);
outOffset += 4;
outBuff.writeInt32BE(type, outOffset);
outOffset += 4;
origBuff.copy(outBuff, outOffset, inOffset);
// Encodes the buffer using base64 if requested
return base64encoded? outBuff.toString('base64') : outBuff;
}