Swift Dictionary Manipulation
Perform common dictionary operations in Swift, including adding, updating, and accessing key-value pairs.
Perform common dictionary operations in Swift, including adding, updating, and accessing key-value pairs.
var userScores = ["Alice": 95, "Bob": 88, "Charlie": 92]
userScores["David"] = 78 // Add a new entry
userScores["Alice"] = 97 // Update an existing entry
let bobScore = userScores["Bob"] // Access a value
