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CoffeeScript Complete Course / Classes

super

Learn super in CoffeeScript with a construct-specific explanation, a unique example, a practical boundary, and a mastery check.

12 min read • Intermediate

super is an atomic CoffeeScript topic inside Classes. The example below uses the actual construct named by the lesson rather than a generic placeholder.

Focus on what super changes: the input, binding, control path, object state, collection, runtime effect, or language contract. Then alter one value and verify that the behavior changes for a reason specific to this feature.

Topic-specific example

coffeescript-05-06-super.coffee
coffeescript Try It Live 
class Animal
  greet: -> "hello"
class Dog extends Animal
  greet: -> "#{super()} woof"
console.log new Dog().greet()
Edge case / engineering note

Change the key input in this CoffeeScript example and predict the result first; the named construct should be the reason the behavior changes.

Content source & attribution
Original Syntaxis Content · Original Syntaxis Content

Lesson quizzes

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