Swift - Checking the Size of an Array

Introduction

To get the length of an array, use the count property:

var OSes :[String]  = ["iOS", "Android", "Windows"]
var lengthofArray = OSes.count  

To check whether an array is empty, use the isEmpty() function:

var OSes :[String]  = ["iOS", "Android", "Windows"]
var arrayIsEmpty = OSes.isEmpty
print(arrayIsEmpty)

Related Topic

• Arrays
• Mutability of Arrays
• Array Data Types
• Retrieving Elements from an Array
• Inserting Elements into an Array
• Modifying Elements in an Array
• Appending Elements to an Array
• Removing Elements from an Array
• Iterating over an Array
• Creating an Empty Array
• Testing Arrays for Equality

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