unused_enumerated.md

Pattern: Unused .enumerated()

Issue: -

Description

When the index or the item is not used, .enumerated() can be removed.

Examples of correct code:

for (idx, foo) in bar.enumerated() { }


for (_, foo) in bar.enumerated().something() { }


for (_, foo) in bar.something() { }


for foo in bar.enumerated() { }


for foo in bar { }


for (idx, _) in bar.enumerated().something() { }


for (idx, _) in bar.something() { }


for idx in bar.indices { }


for (section, (event, _)) in data.enumerated() {}

Examples of incorrect code:

for (↓_, foo) in bar.enumerated() { }


for (↓_, foo) in abc.bar.enumerated() { }


for (↓_, foo) in abc.something().enumerated() { }


for (idx, ↓_) in bar.enumerated() { }

Further Reading

• SwiftLint - Unused Enumerated