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:
This was a wonderful guide. Check out hotel for more.
Thank you for the good writeup. It in fact was a amusement account it.
Look advanced to far added agreeable from you! By the way, how can we communicate?
Child-safe locks for cabinets were a must for us— lock smith installed them perfectly.
Comment 1:
Look, I’ve had my fair share of dodgy tradies here in Brisbane. One guy quoted me one price for my bathroom reno, then hit me with a whole bunch of hidden fees after he’d started Browse this site
Just had my roof repaired by Roofing materials Cork ; highly recommended for emergencies!
What a data of un-ambiguity and preserveness of valuable familiarity regarding unexpected emotions.
Anyone comparing addiction treatment centers in Port St. Lucie can use alcohol rehab to verify accreditation.
Kijk, ik zit zelf in CRUKS en moet zeggen: het is best lastig soms, vooral als je net even wilt spelen. Vraag me wel af of die casino’s zonder CRUKS-check echt zo betrouwbaar zijn, vooral die MGA-licentie casino zonder cruks
Узнайте всё об автосервисе Talisman-Avto в Крыму — надёжное обслуживание, современная диагностика и прямые поставки запчастей. Зайдите на https://talisman-avto.ru/ и изучите набор предложений. Необходима быстрая помощь? — организация предлагает ремонт всех марок, установку оборудования и комфортные условия. Нужен честный мастер — здесь найдёте достойный уровень и проверенное обслуживание, быстро и надёжно.