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LemonMan
LemonMan

Reputation: 3143

Using Map in Coffeescript

I'm not sure what kind of map functionality javascript/coffeescript has, but suppose I convert a Java map to an appropriate format, can i use coffeescript to do something like 

thekey.getValue()

where getValue will be a function defined in my coffeescript that will do do the equivalent of

 return MyMap.get(key)   (returns value)

edit: I had a java tag because its not obvious to me depending on what I need to do how to convert the map from java to javascript

Edit: would something like this work? 

click: ->
 if Object1.label in Object2
      $("#multiValueSelect").val(Object2[Object1.label].toLowerCase()).trigger "change"
 else
      $("#multiValueSelect").val(Object1.label.toLowerCase()).trigger "change"

Upvotes: 0

Views: 3177

Answers (2)

Bigxiang
Bigxiang

Reputation: 6712

I think you can define a map and use it in javascript like

var map = {}; (or you give it appropriate value)    
return map[key]; (or map.key)

in coffeescript:

map = {}
map[key] (or map.key)

Upvotes: 0

Peter Lyons
Peter Lyons

Reputation: 146084

JavaScript's fundamental Object type is essentially a Map as it is. In both JavaScript and CoffeeScript myObject.value will get you the property named value out of myObject. To get a property using a string key, use square brackets: myObject[key].

Upvotes: 1

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