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Node.js | zlib.gzipSync() Method

  • Last Updated : 27 Mar, 2020

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, string.
  • options: This parameter holds the zlib options value.

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

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



Example 1:




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




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

Output:

1f8b0800000000000003f3cb4cc9c8040013f25bb105000000

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

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