The zlib.gunzipSync() method is an inbuilt application programming interface of the Zlib module which is used to decompress a chunk of data with Gunzip.
Syntax:
zlib.gunzipSync( 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 Gunzip.
The below examples illustrate the use of zlib.gunzipSync() method in Node.js:
Example 1:
// Node.js program to demonstrate the
// zlib.gunzipSync() method
// Including zlib module
const zlib = require('zlib');
// Declaring input and assigning
// it a value string
const input = "Nidhi";
// Calling gzipSync method
const gzi = zlib.gzipSync(input);
// Calling gunzipSync method
const decom = zlib.gunzipSync(
new Buffer.from(gzi)).toString();
console.log(decom);
Output:
Nidhi
Example 2:
// Node.js program to demonstrate the
// zlib.gunzipSync() method
// Including zlib module
const zlib = require('zlib');
// Declaring input and assigning
// it a value string
const input = "Nidhi";
// Calling gzipSync method
const gzi = zlib.gzipSync(input).toString('hex');
// Calling gunzipSync method
const decom = zlib.gunzipSync(new Buffer.from(
gzi, 'hex')).toString('base64');
console.log(decom);
Output:
TmlkaGk=
Reference: https://nodejs.org/api/zlib.html#zlib_zlib_gunzipsync_buffer_options
