frontend - front end workflow tools and NODE.JS -

as example

• package manager (bower,gulp)
• javascript task runner(grunt)
• web scaffolding tool (yeoman)

why theses type of front end workflow tools available in nodejs not other language.

bower,gulp,grunt,yoeman etc npm packages. there similar packages in other languages. here some.

front end package managers using bower repo

bowerphp - php implementation of bower.

django-bower - python django

bower-ruby - use bower in ruby

build tools

phing -based on apache ant, taskphp - task runner inspired grunt , gulp, bldr - php

rake ,capistrano - ruby (capistrano tasks behave differently rake tasks , hookable nature separates them rake tasks.)

fabric - python

this understood question. can use these npm packages along other languages also.eg yoeman php