How to use buffer

Comprehensive buffer code examples:

How to use buffer.atob:

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  return
}

let rtspUrl = params.url;
try {
  rtspUrl = atob(rtspUrl);
} catch (e) {
  console.log(e);
  return;
}

How to use buffer.kMaxLength:

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const assert = require('assert');


// Change kMaxLength for zlib to trigger the error without having to allocate
// large Buffers.
const buffer = require('buffer');
const oldkMaxLength = buffer.kMaxLength;
buffer.kMaxLength = 64;
const zlib = require('zlib');
buffer.kMaxLength = oldkMaxLength;

How to use buffer.slice:

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  // still not enough chars in this buffer? wait for more ...
  return '';
}

// remove bytes belonging to the current character from the buffer
buffer = buffer.slice(available, buffer.length);

// get the character that was split
charStr = this.charBuffer.slice(0, this.charLength).toString(this.encoding);

How to use buffer.File:

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  lastModified: Date.now() - 1e6,
};

async function run(n, bytes, operation) {
  const buff = Buffer.allocUnsafe(bytes);
  const source = new File(buff, 'dummy.txt', options);
  bench.start();
  for (let i = 0; i < n; i++) {
    switch (operation) {
      case 'text':

How to use buffer.Blob:

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  buffer.push(...lastString)
  buffer.push(data.slice(0, lastNewline + 1))
  lastString = [data.slice(lastNewline + 1)]
})
const flush = async () => {
  const _buffer = new Blob(buffer)
  buffer = []
  const _stream = preprocessLiveStream({ data: await _buffer.text() }, options.stream)
  const gen = _stream.toGenerator()
  for await (const item of gen()) {

How to use buffer.toString:

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  // buffer the incomplete character bytes we got
  buffer.copy(this.charBuffer, 0, buffer.length - this.charReceived, end);
  end -= this.charReceived;
}

charStr += buffer.toString(this.encoding, 0, end);

var end = charStr.length - 1;
var charCode = charStr.charCodeAt(end);
// CESU-8: lead surrogate (D800-DBFF) is also the incomplete character

How to use buffer._augment:

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  throw new Error('First argument needs to be a number, array or string.')

var buf
if (Buffer._useTypedArrays) {
  // Preferred: Return an augmented `Uint8Array` instance for best performance
  buf = Buffer._augment(new Uint8Array(length))
} else {
  // Fallback: Return THIS instance of Buffer (created by `new`)
  buf = this
  buf.length = length

How to use buffer.alloc:

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ip.mask = function(addr, mask) {
  addr = ip.toBuffer(addr);
  mask = ip.toBuffer(mask);


  var result = Buffer.alloc(Math.max(addr.length, mask.length));


  var i = 0;
  // Same protocol - do bitwise and
  if (addr.length === mask.length) {

How to use buffer.isBuffer:

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function _uint8ArrayToBuffer(chunk) {
  return Buffer.from(chunk);
}


function _isUint8Array(obj) {
  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
}


var destroyImpl = require('./internal/streams/destroy');

How to use buffer.allocUnsafe:

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const StringDecoder = require('string_decoder').StringDecoder
const decoder = new StringDecoder()
const errors = require('redis-errors')
const ReplyError = errors.ReplyError
const ParserError = errors.ParserError
var bufferPool = Buffer.allocUnsafe(32 * 1024)
var bufferOffset = 0
var interval = null
var counter = 0
var notDecreased = 0

How to use buffer.fill:

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  return len
}


// Usage:
//    buffer.fill(number[, offset[, end]])
//    buffer.fill(buffer[, offset[, end]])
//    buffer.fill(string[, offset[, end]][, encoding])
Buffer.prototype.fill = function fill (val, start, end, encoding) {
  // Handle string cases:
  if (typeof val === 'string') {

How to use buffer.copy:

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var available = (buffer.length >= this.charLength - this.charReceived) ?
    this.charLength - this.charReceived :
    buffer.length;

// add the new bytes to the char buffer
buffer.copy(this.charBuffer, this.charReceived, 0, available);
this.charReceived += available;

if (this.charReceived < this.charLength) {
  // still not enough chars in this buffer? wait for more ...

How to use buffer.concat:

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var err = null;

if (nread >= kMaxLength) {
  err = new RangeError(kRangeErrorMessage);
} else {
  buf = Buffer.concat(buffers, nread);
}

buffers = [];
engine.close();

How to use buffer.from:

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    this.offset = 0;
    var _me = this;
    
    this.fileReader.onloadend = function loaded(event) {
        var data = event.target.result;
        var buf = Buffer.from(data);
        _me.push(buf);
    }
}
util.inherits(FileStream, Stream.Readable);

How to use buffer.SlowBuffer:

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SafeBuffer.allocUnsafeSlow = function (size) {
  if (typeof size !== 'number') {
    throw new TypeError('Argument must be a number')
  }
  return buffer.SlowBuffer(size)
}

How to use buffer.isEncoding:

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    return length;
}

// -- Buffer ---------------------------------------------------------------

original.BufferIsEncoding = Buffer.isEncoding;
Buffer.isEncoding = function(encoding) {
    return Buffer.isNativeEncoding(encoding) || iconv.encodingExists(encoding);
}

How to use buffer.isNativeEncoding:

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// -- Buffer ---------------------------------------------------------------

original.BufferIsEncoding = Buffer.isEncoding;
Buffer.isEncoding = function(encoding) {
    return Buffer.isNativeEncoding(encoding) || iconv.encodingExists(encoding);
}

original.BufferByteLength = Buffer.byteLength;
Buffer.byteLength = SlowBuffer.byteLength = function(str, encoding) {

How to use buffer.length:

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while (true) {
  var code1 = this.getCode(litCodeTable);
  if (code1 < 256) {
    if (pos + 1 >= limit) {
      buffer = this.ensureBuffer(pos + 1);
      limit = buffer.length;
    }
    buffer[pos++] = code1;
    continue;
  }

How to use buffer.byteLength:

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jsPDFAPI.arrayBufferToBinaryString = function(buffer) {
	if(this.isArrayBuffer(buffer))
		buffer = new Uint8Array(buffer);

    var binary_string = '';
    var len = buffer.byteLength;
    for (var i = 0; i < len; i++) {
        binary_string += String.fromCharCode(buffer[i]);
    }
    return binary_string;

How to use buffer.prototype:

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    if (typeof end == 'undefined') end = this.length;
    return iconv.decode(this.slice(start, end), encoding);
}

original.BufferWrite = Buffer.prototype.write;
Buffer.prototype.write = function(string, offset, length, encoding) {
    var _offset = offset, _length = length, _encoding = encoding;
    // Support both (string, offset, length, encoding)
    // and the legacy (string, encoding, offset, length)
    if (isFinite(offset)) {

How to use buffer.Buffer:

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	return function _isBuffer() { return false };

try {
	var buffer = require('buffer');
	if (typeof buffer.Buffer === 'function')
		_Buffer = buffer.Buffer;
} catch (error) {}

return function _isBuffer(value) {
	return value instanceof ArrayBuffer ||