shle2821 questions

• In Swift, can you pass nil as an input to a function?
• What's the point of having a global secondary index without a sort key in DynamoDB table?
• Testing Amazon SNS for iOS using the Mobile Hub but can't get it to work
• Swift Design Pattern. Why did they include Any, AnyObject
• what does double square brackets mean in swift?
• Swift, Optional wrappers. "?" "!" I understand how it works. But why is it better than != nil checking
• Using android device with CloudKit JS without an iCloud account
• AWS-Load Balancer. Does it incur cost when no EC2 is linked to them?
• Aws s3 reduced redundancy costs the same as standard?
• Swift, variable with same as a method name

shle2821 answers