Tuesday to master

Objectives

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 Understand and explain version control
-Define custom types using class, struct, and enum
-Understand how braces `{}` are used to group code into blocks and how scope affects the lifespan of a variable
-Force unwrap an optional type and understand the potential dangers and benefits
-Understand how to apply mutability to variables (`let` vs. `var`)
-Push changes to a remote Git repository
-Group like instructions into a function and call that function to reuse/organize code
-Create a pull request on GitHub
-Iterate over an array using a loop to accomplish some task
-Create custom initializers
-Identify, use, and understand the difference between the basic data types: `Int`, `Double`, `Bool`, `String`)
-Clone a remote Git repository
-Use an if let statement to unwrap an optional variable
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+Configure a git identity and default editor on a computer
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 Create a fork on GitHub
-Understand and explain the difference between a method and a function
-Show and explain the difference between value types vs. reference types
-Identify, use, and understand the difference between the basic data types: `Int`, `Double`, `Bool`, `String`)
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 Clone a remote Git repository
-Use conditional logic to execute various code paths
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 Commit changes to a Git repository and write good commit messages
-Understand and explain the purpose of optionals
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+Push changes to a remote Git repository
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+Create a pull request on GitHub
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