![]() |
Chilkat HOME Android™ AutoIt C C# C++ Chilkat2-Python CkPython Classic ASP DataFlex Delphi DLL Go Java Node.js Objective-C PHP Extension Perl PowerBuilder PowerShell PureBasic Ruby SQL Server Swift Tcl Unicode C Unicode C++ VB.NET VBScript Visual Basic 6.0 Visual FoxPro Xojo Plugin
(Node.js) Compress Text Feed to BinaryThis example receives incoming text data in chunks, compresses as a stream, and accumulates the compressed binary data. Note: This example requires Chilkat v11.0.0 or greater.
var os = require('os'); if (os.platform() == 'win32') { var chilkat = require('@chilkat/ck-node23-win64'); } else if (os.platform() == 'linux') { if (os.arch() == 'arm') { var chilkat = require('@chilkat/ck-node23-linux-arm'); } else if (os.arch() == 'arm64') { var chilkat = require('@chilkat/ck-node23-linux-arm64'); } else { var chilkat = require('@chilkat/ck-node23-linux-x64'); } } else if (os.platform() == 'darwin') { var chilkat = require('@chilkat/ck-node23-mac-universal'); } function chilkatExample() { var success = false; // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. var bdCompressed = new chilkat.BinData(); var compress = new chilkat.Compression(); compress.Algorithm = "deflate"; compress.Charset = "utf-8"; var sbUncompressedChunk = new chilkat.StringBuilder(); compress.FirstChunk = true; compress.LastChunk = false; var i; for (i = 0; i <= 24; i++) { if (i == 24) { compress.LastChunk = true; } sbUncompressedChunk.Clear(); sbUncompressedChunk.AppendInt(i); sbUncompressedChunk.Append(": This is a line of data to be compressed...\r\n"); compress.CompressSb(sbUncompressedChunk,bdCompressed); compress.FirstChunk = false; } // Show the compressed data in hex format: console.log("The hex encoded compressed text:"); console.log(bdCompressed.GetEncoded("hex")); // Now decompress in one call. It is important to set both FirstChunk and LastChunk = true var bdDecompressed = new chilkat.BinData(); compress.FirstChunk = true; compress.LastChunk = true; success = compress.DecompressBd2(bdCompressed,bdDecompressed); if (success == false) { console.log(compress.LastErrorText); return; } var originalText = bdDecompressed.GetString("utf-8"); console.log(originalText); } chilkatExample(); |
© 2000-2025 Chilkat Software, Inc. All Rights Reserved.