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Gulp js interview questions and answers

What Is Gulpjs? Is Gulpjs based on Node.js?

What Is Gulpjs?
Gulpjs is an open-source, build JavaScript task runner and very popularity toolkit for Automate and enhance complex tasks like magnification, checking js errors, unit testing, compile SASS, optimize images, bundling of various js and css files.

Gulpjs is very simple, automation, platform-agnostic, and strong ecosystem. It’s used to solve the problems of code repetitions. It is easy to use, has a simple API, and is efficient.
There are only 4 APIs in gulp!          
1.      The gulp.task() - it used to define a task
2.      The gulp.src() - it used to read files in
3.      The gulp.dest ()- it used to write files out
4.      The gulp.watch() - it used to watch files for changes

You define a “task” in a file called “gulpfile.js” and task can be anything which you need to do repetitive.

Gulpjs is a JavaScript task runner that lets you automate tasks such as -
1.      Bundling and minifying libraries and style sheets
2.      Refreshing your browser when you save a file
3.      Quickly running unit tests
4.      Running code analysis
5.      Less/Sass to CSS compilation
6.      Copying modified files to an output directory

Is Gulpjs based on Node.js?
Yes!, Gulp is based on Node.js.

Why to use gulp?
1.      Gulp is open-source
2.      It is very faster
3.      Gulp plugins were designed to do a single job.
4.      GULP minify CSS, JS
5.      Compressing new and modified images
6.      Fast build
7.      Gulp used JavaScript configuration code that was less verbose, easier to read, simpler to modify, and provided better flexibility.
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