Swift Dictionaries

In Swift, the main data types for storing collections of values are Array, Set, and Dictionary.

Here we will explain the basics of using Swift Dictionaries.

• Swift Dictionary - Creating, Updating, and Adding Key-Value Pairs
  • The Basics of Swift Dictionaries
  • Accessing Values in a Dictionary
  • Updating Values in a Dictionary
  • Adding Key-Value Pairs to a Dictionary
• Swift Dictionary - Removing Key-Value Pairs
  • Removing a Key-Value Pair with removeValue()
  • Removing All Key-Value Pairs with removeAll()
• Swift Dictionary - Count and Key Existence
  • Getting the Number of Key-Value Pairs with count
  • Checking if a Dictionary is Empty with isEmpty
  • Checking if a Dictionary Contains a Key
• Swift Dictionary - Loops, mapValues, and filter
  • Looping Through Keys and Values in a Dictionary
  • Looping Through Keys Only or Values Only
  • Generating a Dictionary with Transformed Values Using mapValues()
  • Generating a Dictionary with Filtered Key-Value Pairs Using filter()