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.
// 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.
// 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
