Node.js zlib.createUnzip() Method Last Updated : 28 Apr, 2025 Comments Improve Suggest changes Like Article Like Report The zlib.createUnzip() method is an inbuilt application programming interface of the Zlib module which is used to create a new Unzip object. Syntax: zlib.createUnzip( options ) Parameters: This method accepts single parameter options which is an optional parameter that holds the zlib options. Return Value: It returns a new Unzip object. The below examples illustrate the use of zlib.createUnzip() method in Node.js: Example 1: In this example, we will see the use of zlib.createUnzip() method. javascript // Node.js program to demonstrate the // createUnzip() method // Including zlib module const zlib = require('zlib'); // Calling gzip function to compress data zlib.gzip('Nidhi Singh', function (err, data) { if (err) { return console.log('err', err); } // Calling createUnzip method // to decompress the data again const unzip = zlib.createUnzip(); unzip.write(data); unzip.on('data', function (data) { console.log(data.toString()); }); }); Output: Nidhi Singh Example 2: In this example, we will see the use of the createUnzip() method. javascript // Node.js program to demonstrate the // createUnzip() method // Including zlib module const zlib = require('zlib'); // Calling gzip function to compress data zlib.gzip('Nidhi Singh', function (err, data) { if (err) { return console.log('err', err); } // Calling createUnzip method // to decompress the data again const unzip = zlib.createUnzip(); unzip.write(data); unzip.on('data', function (data) { console.log(data.toString('hex')); }); }); Output: 4e696468692053696e6768 Reference: https://nodejs.org/api/zlib.html#zlib_zlib_createunzip_options Comment More infoAdvertise with us Next Article Node.js zlib.createDeflateRaw() Method N nidhi1352singh Follow Improve Article Tags : Web Technologies Node.js Node.js-Zlib-module Similar Reads Node.js zlib.constants Property The zlib.constants property is used to yields an object listing Zlib-related constants. Syntax: zlib.constants Return Value: It returns all the Zlib-related constants. Below examples illustrate the use of zlib.constants property in Node.js: Example 1: javascript // Node.js program to demonstrate // 4 min read Node.js zlib.createBrotliCompress() Method The zlib.createBrotliCompress() method is an inbuilt application programming interface of the Zlib module which is used to create BrotliCompress object. 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