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Just the same as the book: https://developer.apple.com/library/content/documentation/Swift/Conceptual/Swift_Programming_Language/Extensions.html#//apple_ref/doc

by dzonga 10y ago

Just the same as the book: https://developer.apple.com/library/content/documentation/Swift/Conceptual/Swift_Programming_Language/Extensions.html#//apple_ref/doc/uid/TP40014097-CH24-ID151 https://developer.apple.com/library/content/documentation/Sw...