What is CoffeeScript?

CoffeeScript is a small programming language that compiles into JavaScript. It seeks to make writing JavaScript code better by providing you with a more consistent and succinct syntax, as well as by avoiding the "bad parts" and quirky/irregular nature of the JavaScript language.

http://jashkenas.github.com/coffee-script/

How CoffeeScript Works

The code writing and use process of CoffeeScript is simple:

   1. Write your code in a .coffee file
   2. Compile it into a .js file
   3. Include the .js file in your web page/s like you would any other JavaScript file


One thing I do not like is the compile part of the process.

[list]
[li]Have you used CoffeeScript before?[/li]
[li]Do you plan to use it?[/li]
[/list]

Share your views and thoughts.

left to me i think about it and am like why bother not really anything specials i'd rather just stick to good habits than have a language do that for me, also if i have an error while writing coffeescript and compiled to js, i would have to look at coffee again. though it appeals more to ruby users than already javascript developers.

I've heard about it before, never looked into it closely before this. Seems kind of cool. Thanks for posting.

Reading through the tutorial seems heavily rubyish, lol. I'll have to look at this more.

wale4x35:

[list]
[li]Have you used CoffeeScript before?[/li]
[li]Do you plan to use it?[/li]
[/list]

Yes, I've used it but not on serious projects (I mostly do it with the other stack HAML/SASS), it's introduces interesting syntax to JS but then, when debugging, you have to go back to plain ol' JS -- in some way; my opinion is that people don't want to take the pain to learn the *good* parts of javascript and turn to the abstraction of coffeescript.

No doubt you can write faster, I like it ruby-like syntax (and some control structure it introduces to JS, unless, etc), but then,

IMO, I love syntax flexibility, that compiling thing is some biggie, though when I do coffeescript, I generally compile on the fly with: "Live Reload", and of course there's Node.js if you're so inclined.

For now, just plain javascript for me and it doesn't replace JS, it's more a compliment.

Btw, if you're want to pursue CffS, checkout my fork of this fine book: https://github.com/delomos/Smooth-CoffeeScript

Coffee-script is AWESOME. However, if you dont write Ruby code or maybe python, you wouldn't see its use. I use CoffeeScript in my web development an its great. Some other things you should try out are HAML and SASS.

coffeescript is pretty cool.

Took some time today to take another look at CoffeeScript through reading the beta of "Programming in Coffeescript" (due for release May/June 2012) -- a few interesting things with it lately but frankly, there's only so far abstraction should go, still sticking with vanilla Javascript.

Maybe it's the book (which I'm giving feedback to), or just me --- meehhhh.

delomos:

Took some time today to take another look at CoffeeScript through reading the beta of "Programming in Coffeescript" (due for release May/June 2012) -- a few interesting things with it lately but frankly, there's only so far abstraction should go, still sticking with vanilla Javascript.

Maybe it's the book (which I'm giving feedback to), or just me --- meehhhh.

Elaborate? Specific examples?

@ekt_bear
This days, most of javascript work is heavy on jQuery which itself tries to abstract the working with the DOM, so say I want to do the oft AJAX thingy, say we're doing, using just JS/jQ:

$.get('somepage.php', {s:s_query }, function(data, xhr){
if(!xhr.success) { console.log("some error"; }else {
$('#some_id').html(data) }
}, json);

^^^ that is sure some heavy abstraction from writing pure XMLHttpRequest, then in CoffeeScript:

$.get 'somepage.php' ,{s:s_query}, ->(data, xhr)
if !xhr.success
console.log "some error"
else
$('#some_id').html data
,json

(which then compiles into JS that binds locally, and even more abstracted [synatically] ).

One misconception most folks have about CoffeeScript is that it frees you from understanding javascript -- well, wrong. One has to actually understand JS well, quite well actually to find CoffeeScript useful (since you have to debug in JS anyways).

jQ makes working with the day-to-day JS abstracted enough -- and frankly, getting used to some of CS idioms is too much trouble is all you're really doing is manipulating DOMs.

I prefer the CS syntax above to the JS.

The JS takes more time to read, at least for me.

I agree, CS is definitely easier to read/write (though I must agree, there's a more readable way to write that block -- but it'll deviate a bit off JS idioms e.g. use anonymous function if function is not called elsewhere, which many language frown upon but I think is sweet, as you mention, not exactly pleasantly readable)

But don't forget you still have to compile, and debug a JS file (CS is only giving "syntax sugar"). In my mind, I'd most likely use CS is I'm doing a hardcore JS project, oooouch , but then there's Backbone.js , Dojo, Mootools, and other serious JS libraries that won't be in CS anytime soon.

Its actually good to see how hard people around the globe are pushing JavaScript to the limits.

I would say in about 5-10 years, desktop application would become history.

Another JS library note.js http://nodejs.org/ makes it easy to write network applications using javscript.

Imagine serving web pages from javascript

Interesting stuff.

coffee is bad for d health as it contains caffeine

please anyone help me with any institution where i can learn java or individuals who can teach please reply with valid information, no scam please!!!

whats wrong with jquery

sparko1: please anyone help me with any institution where i can learn java or individuals who can teach please reply with valid information, no scam please!!!

Do you have any previous programming experience?

Try google out your answers.

Fellows pls, I love 2 program & develope as an engineer bt don't ve any one around me 2 get me dere. Pls pick me up 2 be at ur service & God will reward u.

Friends,

Another JS library - RaphaelJS http://www.raphaeljs.com for rendering graphics using SVG.

I am currently using it in the project attached below.

Its strange that little is known about this amazing library!!