Gulp Js interview questions & Answers (2025)

Gulp is a cross-platform, streaming task runner for developers to automate many development tasks that can be run using Shell or Bash scripts on the command line. it uses Node.js as a platform. Gulp purely uses the JavaScript code that helps to run front-end tasks and large-scale web applications.

To install gulp, You can follow these steps:

Step 1 – Installing Node.js

You can use the following set of commands to add node.js PPA in your Ubuntu system and install it.

sudo apt-get install python-software-properties

curl -sL https://deb.nodesource.com/setup_12.x | Sudo -E bash - Sudo apt-get install nodejs

If you have successfully installed node.js and NPM on your system

node --version

npm --version

Step 2 – Install Gulp.js on Ubuntu

After Step 1 You can use the following commands to install Gulp CLI globally on your system.

npm install -g gulp-cli

When You have successfully installed the Gulp CLI tool on your system.

Switch to your existing node.js application directory or create a new application with the below commands:

mkdir my-project && cd my-project

node init

Then add the Gulp module to your project

npm install --save-dev gulp

When all is done, Let’s check the installed version of Gulp CLI on your system and the Gulp module in your application with the following command.

gulp --version

CLI version: 2.2.0

Local version: 4.0.2

Gulp is used because of the following reasons:

• In comparison to other task runners, It is shorter, simpler and faster
• It Uses SASS and LESS as a CSS preprocessor.
• Easy to understand and build the Gulpfile.js because it uses pure JavaScript code to build the task.
• Automatically refreshes page after editing the source files

There are 5 types of streams are available in Gulp.

gulp.src() function returns a stream, so it's asynchronous.

The Difference Between Gulp and Granjs are as follows: