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In this chapter, we'll revisit topics from the Introduction to Programming section.

Data Types

Data Types

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Literals

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Numeric Values

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Variables and Assignment

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Boolean Values

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Text Sequences

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Functions

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None: When You Want Nothing

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Sequences

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Mappings

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Sets

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Basic Operations

Arithmetic Operations

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Equality Comparison

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Ordered Comparisons

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String Concatenation

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Coercion

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Determining Types

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String Representations

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Collection and String Lengths

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Indexing and Key Access

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Expressions and Statements

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Expression Evaluation

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Output vs Return Values

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Variables

Variables and Variable Names

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Naming Conventions

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Creating and Reassigning Variables

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Creating Constants

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Expressions and Assignment

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Augmented Assignment

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Reassignment vs Mutation

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Input / Output

Terminal Output

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Terminal Input

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Functions and Methods

Calling Functions

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Built-in Functions

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Creating Functions

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Scope

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Namespaces

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Arguments & Parameters

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Return Values

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Default Parameters

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Functions vs Methods

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Mutating the Caller

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Flow Control

Conditionals

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Comparisons

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Logical Operators

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Short-Circuiting

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Truthiness

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Logical Operator Precedence

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match / case Statements

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Ternary Expressions

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