|This article relies too much on references to primary sources. (May 2015) (Learn how and when to remove this template message)|
|Paradigm||multi-paradigm, functional, object-oriented|
|Designed by||Jeremy Ashkenas, Satoshi Murakami, George Zahariev|
|Developer||Jeremy Ashkenas, Satoshi Murakami, George Zahariev|
LiveScript 1.5.0 / 15 May 2016
|Typing discipline||dynamic, weak|
hello = -> console.log 'hello, world!'
While calling a function can be done with empty parens,
hello, LiveScript treats the exclamation mark as a single-character shorthand for function calls with zero arguments:
LiveScript introduces a number of other incompatible idioms:
hello-world = -> console.log 'Hello, World!'
With this definition, both the following calls are valid. However, calling using the same dashed syntax is recommended.
Like a number of other functional programming languages such as F# and Elixir, LiveScript supports the pipe operator,
|> which passes the result of the expression on the left of the operator as an argument to the expression on the right of it. Note that in F# the argument passed is the last argument, while in Elixir it is the first.
"hello!" |> capitalize |> console.log # > Hello!
When parenthesized, operators such as
+ can be included in pipelines or called as if they were functions.
111 |> (+) 222 # > 333 (+) 1 2 # > 3
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