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Ruby Language
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Arrays
#map
Accessing elements
Arrays and the splat (*) operator
Arrays union, intersection and difference
Cast to Array from any object
Create an Array of consecutive numbers or letters
Create Array of numbers
Create Array of Strings
Create Array of Symbols
Create Array with Array::new
Creating an Array with the literal constructor [ ]
Decomposition
Filtering arrays
Get all combinations / permutations of an array
Get unique array elements
Inject, reduce
Manipulating Array Elements
Remove all nil elements from an array with #compact
Turn multi-dimensional array into a one-dimensional (flattened) array
Two-dimensional array
Blocks and Procs and Lambdas
C Extensions
Casting (type conversion)
Catching Exceptions with Begin / Rescue
Classes
Command Line Apps
Comments
Comparable
Constants
Control Flow
DateTime
Debugging
Design Patterns and Idioms in Ruby
Destructuring
Dynamic Evaluation
Enumerable in Ruby
Enumerators
Environment Variables
ERB
Exceptions
File and I/O Operations
Gem Creation/Management
Gem Usage
Generate a random number
Getting started with Hanami
Hashes
Implicit Receivers and Understanding Self
Inheritance
Installation
instance_eval
Introspection
Introspection in Ruby
IRB
Iteration
JSON with Ruby
Keyword Arguments
Loading Source Files
Message Passing
Metaprogramming
method_missing
Methods
Modules
Monkey Patching in Ruby
Monkey Patching in Ruby
Monkey Patching in Ruby
Multidimensional Arrays
Numbers
Operating System or Shell commands
Operators
Operators
OptionParser
Pure RSpec JSON API testing
Queue
Range
rbenv
Recursion in Ruby
Refinements
Regular Expressions and Regex Based Operations
Ruby Access Modifiers
Ruby Version Manager
Singleton Class
Special Constants in Ruby
Splat operator (*)
Strings
Struct
Symbols
Thread
Time
Truthiness
Variable Scope and Visibility
Ruby Language
Getting started with Ruby Language
Awesome Book
Awesome Community
Awesome Course
Awesome Tutorial
Awesome YouTube
Arrays
#map
Accessing elements
Arrays and the splat (*) operator
Arrays union, intersection and difference
Cast to Array from any object
Create an Array of consecutive numbers or letters
Create Array of numbers
Create Array of Strings
Create Array of Symbols
Create Array with Array::new
Creating an Array with the literal constructor [ ]
Decomposition
Filtering arrays
Get all combinations / permutations of an array
Get unique array elements
Inject, reduce
Manipulating Array Elements
Remove all nil elements from an array with #compact
Turn multi-dimensional array into a one-dimensional (flattened) array
Two-dimensional array
Blocks and Procs and Lambdas
C Extensions
Casting (type conversion)
Catching Exceptions with Begin / Rescue
Classes
Command Line Apps
Comments
Comparable
Constants
Control Flow
DateTime
Debugging
Design Patterns and Idioms in Ruby
Destructuring
Dynamic Evaluation
Enumerable in Ruby
Enumerators
Environment Variables
ERB
Exceptions
File and I/O Operations
Gem Creation/Management
Gem Usage
Generate a random number
Getting started with Hanami
Hashes
Implicit Receivers and Understanding Self
Inheritance
Installation
instance_eval
Introspection
Introspection in Ruby
IRB
Iteration
JSON with Ruby
Keyword Arguments
Loading Source Files
Message Passing
Metaprogramming
method_missing
Methods
Modules
Monkey Patching in Ruby
Monkey Patching in Ruby
Monkey Patching in Ruby
Multidimensional Arrays
Numbers
Operating System or Shell commands
Operators
Operators
OptionParser
Pure RSpec JSON API testing
Queue
Range
rbenv
Recursion in Ruby
Refinements
Regular Expressions and Regex Based Operations
Ruby Access Modifiers
Ruby Version Manager
Singleton Class
Special Constants in Ruby
Splat operator (*)
Strings
Struct
Symbols
Thread
Time
Truthiness
Variable Scope and Visibility
Ruby Language
Arrays
Syntax
a = [] # using array literal
a = Array.new # equivalent to using literal
a = Array.new(5) # create an array with 5 elements with value of nil.
a = Array.new(5, 0) # create an array with 5 elements with default value of 0.
Arrays Related Examples
#map
Accessing elements
Arrays and the splat (*) operator
Arrays union, intersection and difference
Cast to Array from any object
Create an Array of consecutive numbers or letters
Create Array of numbers
Create Array of Strings
Create Array of Symbols
Create Array with Array::new
Creating an Array with the literal constructor [ ]
Decomposition
Filtering arrays
Get all combinations / permutations of an array
Get unique array elements
Inject, reduce
Manipulating Array Elements
Remove all nil elements from an array with #compact
Turn multi-dimensional array into a one-dimensional (flattened) array
Two-dimensional array
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