Operators
:: operator
This provides a shortcut to the prototype operator. Without a preceed class, it will assume to be the last reference class or function defintion
Animal = {}
::fast = function() { return this.speed > 100 }
::alive = true
Mammal = {}
::legs = function() { return 4 }
Mammal::lungs = true
.= and ||= and <–
2 extra assignment operators, ||= and .=. They work in a similar method as += etc.
location.href .= replace "?old", "?new"
name .= toUpperCase()
opts ||= {}
Also an extend operator ><–
This creates a new object as opposed to overwriting, so you will need to assign it
a <- b
options = options <- { size: "small", num: 10}
pipe
This is probably one of the most unusual features of Kaffeine. It provides an alternative calling method than can be used for chaining (UNIX style passing)
Exmamples
result = input | fn args
Chaining input to output
result = input | fn a, b | fn2 c | fn3 d
For example, it is very useful for ruby style enumeration chaining without using prototypes, and other utilities
| = require "pipe_utils"
People | map { #.name } | detect { #.length > 3 }
opts = opts | extend default
5 | times { if(!send()) return false }
names | asyncMap (name, fn) {
user = User.find! {name: name}
fn(user)
}, complete
pipe_utils is a v useful utility belt full of functions, available on npm and github
