Learn Smalltalk with Profstef

• url: https://amber-lang.net/learn.html

Highlights

• "Literal arrays are created at parse time:"
  • #( 1 2 3 #(4 5 6))
• "Dynamic Arrays are created at execution time:"
  • { (2+3) . (6*6) }
• "Messages are sent to objects. There are three types of message: Unary, Binary and Keyword."
  • unary: anObject aMessage
  • binary: anObject + anotherObject"
  • keyword: anObject akey: anotherObject akey2: anotherObject2
  • "Unary messages are executed first, then binary messages and finally keyword messages:
    • "Between messages of similar precedence, expressions are executed from left to right"
• "; is the cascade operator. It's useful to send message to the SAME receiver"
• Blocks [ ] are anonymous methods that can be stored into variables and executed on demand.
• |b| is the declaration of a variable named 'b' and that ':=' assigns a value to a variabl

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Backlinks

• Smalltalk