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What is createInflate() in Node.js ?

Adnan Abbas

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

The zlib module in Node.js provides compression and decompression functionality utilizing Gzip, Deflate/Inflate, and Brotli.

It can be accessed in your program with:

const zlib = require('zlib');

createInflate() is a function of the zlib module that creates an Inflate object. This object is used to decompress a deflate stream. We use the deflate function to compress data.

Syntax

zlib.createInflate( options )

Parameters

  • options is an optional parameter used to provide options to the zlib classes.

Return value

The createInflate() method returns a new Inflate object.

Example

In the program below, we will learn how to use the createInflate method to decompress data.

  • First, we compress the input data using the deflate method provided by the zlib module in line 4.

  • Then, we create an Inflate object used to decompress the compressed input in line 13.

  • We use the toString method, which converts the decompressed data stream to text, and then we print it.

var zlib = require('zlib');
var input = 'Educative Inc.'
// Calling deflate function to compress data
zlib.deflate(input, function(err, data)
{
if (err)
{
return console.log('err', err);
}
//The createInflate method allows us to decompress the data
var decompress = zlib.createInflate();
decompress.write(data);
decompress.on('data', function (data){
console.log(data.toString());
});
});

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node.js

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Adnan Abbas
Copyright ©2022 Educative, Inc. All rights reserved

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

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