SE-0207 provides a new allSatisfy() method that checks whether all items in a sequence pass a condition.
For example, if we had an array of exam results like this:
let scores = [85, 88, 95, 92]We could decide whether a student passed their course by checking whether all their exam results were 85 or higher:
let passed = scores.allSatisfy { $0 >= 85 }
SPONSORED Still waiting on your CI build? Speed it up ~3x with Blaze - change one line, pay less, keep your existing GitHub workflows. First 25 HWS readers to use code HACKING at checkout get 50% off the first year. Try it now for free!
Sponsor Hacking with Swift and reach the world's largest Swift community!
Other changes in Swift 4.2…
- Derived collections of enum cases
- Warning and error diagnostic directives
- Dynamic member look up
- Enhanced conditional conformances
- Random number generation and shuffling
- Simpler, more secure hashing
- In-place collection element removal
- Boolean toggling
Download all Swift 4.2 changes as a playground Link to Swift 4.2 changes
