Clojure Adventures - MileStone 1

milestone1.md

• Clojure, the core data structures aren't mutable

Clojure Data Structures

Clojure has two types of expressions atoms and collections

ATOMS

Atoms represent Primitive Types in other languages, like:
Numbers, Strings, Boolean, Nil, Symbols, Keywords

1. Numbers
   2
1.5

2. Strings
   A valid string example with ""

   (println "Hello World")  
   => Hello World 
    
   (println "\"Hello World\"")  
   => "Hello World"

   Invalid String example with ''

   (println 'Hello World')  
   => clojure.lang.Compiler$CompilerException: java.lang.RuntimeException: Unable      to resolve symbol: World' in this context, compiling:(null:5:1)

   Note: Clojure doesn't have string interpolation

3. Boolean
   true false

4. Nil - Clojure’s name for no-value
   nil

5. Symbols (Not to be confused with Ruby's symbols)
   Symbols in clojure are like identifiers to refer to something like variables in other laguages. As clojure does not have variables.

6. Keywords (They bind to themseleves)
   Primarily used as keys in hashes/maps
   :key :1234