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    elixir_001: Immutability
  
        
  
    
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  | # Failed rebinding in pattern matching | |
| [a, b, a] = [1, 2, 3] | |
| # ** (MatchError) no match of right hand side value: [1, 2, 3] | 
  
    
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  | # Pin operator | |
| a = 1 | |
| a = 3 | |
| ^a = 5 | |
| # ** (MatchError) no match of right hand side value: 5 | 
  
    
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  | # rebinding a variable | |
| a = 1 | |
| a = 3 | 
  
    
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  | # Simple assignment | |
| a = 1 | |
| b = 3 | 
  
    
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  | # Without reassignment | |
| name = "john" | |
| name_after_one_function = function1(name) | |
| name_after_two_functions = function2(name_after_one_function) | |
| name_after_three_functions = function3(name_after_two_functions) | 
  
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