Empty Collection Literal

Prefer checking isEmpty over comparing collection to an empty array or dictionary literal.

• Identifier: empty_collection_literal
• Enabled by default: Disabled
• Supports autocorrection: No
• Kind: performance
• Analyzer rule: No
• Minimum Swift compiler version: 3.0.0
• Default configuration: warning

Non Triggering Examples

myArray = []

myArray.isEmpty

!myArray.isEmpty

myDict = [:]

Triggering Examples

myArray↓ == []

myArray↓ != []

myArray↓ == [ ]

myDict↓ == [:]

myDict↓ != [:]

myDict↓ == [: ]

myDict↓ == [ :]

myDict↓ == [ : ]