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Node.js zlib.gzipSync() Method

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The zlib.gzipSync() method is an inbuilt application programming interface of the Zlib module which is used to compress a chunk of data with Gzip. 

Syntax:

zlib.gzipSync( buffer, options )

Parameters: This method accepts two parameters as mentioned above and described below:

  • buffer: This parameter holds the buffer of type Buffer, TypedArray, DataView, ArrayBuffer, and string.
  • options: This parameter holds the value of the zlib option.

Return Value: It returns the chunk of data with Gzip. 

The below examples illustrate the use of zlib.gzipSync() method in Node.js: 

Example 1: 

javascript




// Node.js program to demonstrate the   
// zlib.gzipSync() method
 
// Including zlib module
const zlib = require('zlib');
 
// Declaring input and assigning
// it a value string
const input = "Nidhi";
 
// Calling brotliDecompressSync method
const gzi = zlib.gzipSync(input);
 
console.log(gzi);


Output:

<Buffer 1f 8b 08 00 00 00 00 00 00 03 f3 cb
    4c c9 c8 04 00 13 f2 5b b1 05 00 00 00>

Example 2: 

javascript




// Node.js program to demonstrate the   
// zlib.gzipSync() method
 
// Including zlib module
const zlib = require('zlib');
 
// Declaring input and assigning
// it a value string
const input = "Nidhi";
 
// Calling brotliDecompressSync method
const gzi = zlib.gzipSync(input).toString('hex');
 
console.log(gzi);


Output:

1f8b0800000000000003f3cb4cc9c8040013f25bb105000000

Reference: https://nodejs.org/api/zlib.html#zlib_zlib_gzipsync_buffer_options


Last Updated : 31 Mar, 2023
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