Explanation
“@instance:” allows us to attach an object/value to the Foo class instead of Foo’s prototype. Recall that “@” in CoffeeScript refers to JavaScript’s “this”.
After “@instance:” there is a function that is immediately executed. This function returns a function, closed around a variable called instance. Both these functions have their context (their “this”) bound to the Foo object using CoffeeScript’s wonderful “define and bind” operator “=>” as opposed to the normal function definition operator “->”.
When called, the function that “@instance” ends up referring to simply checks to see if the “instance” variable is empty and if so, assigns a new instance of Foo to it. Newing up a Foo is done using the “@” symbol since the function’s “this” refers to the Foo object. It then returns the instance.
Output
The CoffeeScript above compiles down to this:
Good day! Do you know if they make any plugins to safeguard against hackers?
I’m kinda paranoid about losing everything I’ve worked hard on. Any tips?
Greetings! I know this is kinda off topic but I was wondering
which blog platform are you using for this website?
I’m getting sick and tired of WordPress because I’ve had problems
with hackers and I’m looking at options for another platform.
I would be awesome if you could point me in the direction of a good platform.
This page truly has all the information I wanted concerning this subject and didn’t know who to ask.
Remarkable! Its really amazing article, I have got much clear idea about from this post.
Howdy just wanted to give you a quick heads up. The text in your content seem to be running off the screen in Firefox.
I’m not sure if this is a formatting issue or something to do with internet browser compatibility but I figured I’d post to let
you know. The style and design look great though!
Hope you get the problem fixed soon. Many thanks