what is gulpjs

1/* 
2  What is gulpjs ?
3  It's just a tookit library for optimizing some repetative tasks like comilying Sass every time manually 
4  by using gulpjs we can do repeatative task with one command and we can also watch if any change on those task occur
5  e.g:
6  Moving/Copying Files		
7  Concatenate JavaScript Files		
8  Minify / Uglify JavaScript Files		
9  Compile Sass/scss Files		
10  Optimize Images with Imagemin		
11
12  some resources to practice :
13  sample repo  : https://github.com/abdulmoizshaikh/gulpexapp
14  crash course : https://www.youtube.com/watch?v=1rw9MfIleEg&ab_channel=TraversyMedia 
15*/
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