redscript v0.0.9

RedScript

A Ruby flavored superset of JavaScript

• Paste in compatibility with JS (except a few keywords)
• Cleaner syntax for AMD modules (CommonJS sugar coming later)
• Easier prototypal inheritance
• Cleaner ES5 object literals
• Optional Ruby/CoffeeScript like aliases
• String interpolation
• Block like syntax for anonymous functions
• Function expressions, define functions in a Ruby like way
• ------ Check History.md for current working syntax ------

RedScript was created to provide a better syntax for AMD modules and to provide a few aliases to make things a bit nicer to work with (my favs being func, @, puts, ->, and >>).

It was also created as a side project to learn more about Node, NPM Modules and Regular Expressions. In the future I would also like to add a propper lexer/parser to implement more advanced features like optional parens and optional var declarations (feel free to fork!).

You can read more about it on my blog: Introducing RedScript.

To Install and Run

npm install -g redscript

redscript watch [fileName fileName2]

Learning RedScript is easy, add a bit here and there until you're comfortable!

# No RedScript syntax... still works!
function sayHello(name) {
  console.log("Hello " + name);  
}

# function expressions                                 // function expressions
func sayHello(name)                                    var sayHello = function(name) {
  # puts aliases console.log                             // puts aliases console.log
  puts "Hello #{name}"                                   console.log("Hello " + name);
end                                                    }

A better AMD RequireJS syntax

define module                                                   define(
require 'jquery' as $                                           ['jquery',
require './views/widget'  as Widget                             './views/widget'], function($, Widget) {        

options = {                                                        var options = {
  moonRoof: true,                                                    moonRoof: true,   
  seats: 5                                                           seats: 5      
}                                                                  }          

getCost = 16899                                                var getCost = 16899;
wheels = 4                                                     var wheels = 4;
 
# export literal compiles to an object that gets returned
export                                                              return {   
  getCost                                                               getCost : getCost,
  hasMoonRoof from options.moonRoof                                     hasMoonRoof : options.moonRoof,   
  getWheels from wheels                                                 getWheels : wheels     
end                                                                 }           
                                                                }); 

define module
require "jquery" as $


# Block like syntax for anonnynous functions 
myBtn.on 'click', do |e|
  e.preventDefault()
  @widget.slideToggle "slow"
end


# Alias this with @.
model.on('change', @render)


# Private blocks
foo = 200
private
  foo = 10
end
alert(foo)  # alerts 200


# Paren free for/while
while foo is 200
  puts "I'm looping forever"
end


# Multi-Line if/else/else if
if foo == 10
  bar("do stuff")
else if foo == 20
  bar("do stuff")
else
  bar("do stuff")
end


# Ruby/Coffee style switch statements
switch fruit                                             switch (fruit) {
when "apple"                                               case "apple":
  puts "it's an appppple"                                    console.log("it's an appppple");
  break;                                                     break;
when "bannana" then puts("bannana")                        case "bannana": console.log("bannana"); break;
when "orange"                                              case "orange":
  puts "it's an orange"                                      console.log("it's an orange");
  break;                                                     break;
default                                                    default:
  puts "uh oh, bummer"                                       console.log("uh oh, bummer");
end                                                      }

    # object literal declarations
    
    object myWidget
      key, "value"
      def sayHi(name)
        puts "Hello #{name}"
      end,
      def getKey
        return @key
      end
    end

    # define method outside of object literal

    def myWidget.sayBye
      puts "goodbye!"
    end

    # attaches baz to String's prototype

    def String >>> baz(x)
      # do stuff
    end

See more syntax examples on RedScript's website (coming soon)