Swift .removeAll()

The .removeAll() method will remove all key-value pairs from a dictionary.

Syntax

dictionaryInstance.removeAll()

Note: The .removeAll() method takes no parameters.

Example

var bookShelf = [
    "Moby Dick": "Herman Melville",
    "The Odyssey": "Homer",
    "Pride and Prejudice": "Jane Austen"
]

bookShelf.removeAll()

print(bookShelf)

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In the example above, all key-value pairs in the bookShelf dictionary are removed. This will output an empty dictionary:

[:]

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