Swift version: 5.6
Swift 2.2 introduced the ability to compare two tuples up to arity six, which means the tuples can contain no more than six elements. To compare tuples, just use the ==
operator, like this:
let singer = ("Taylor", "Swift")
let alien = ("Justin", "Bieber")
if singer == alien {
print("Matching tuples!")
} else {
print("Non-matching tuples!")
}
Warning: if you use labels, these are not evaluated when comparing two tuples. So, the code below will print "Matching tuples!" even though the labels are different:
let taylor = (first: "Taylor", last: "Swift")
let bird = (name: "Taylor", type: "Swift")
if taylor == bird {
print("Matching tuples!")
} else {
print("Non-matching tuples!")
}
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This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
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