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When to use enumerateObjectsUsingBlock vs. for
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Ultimately, use whichever pattern you want to use and comes more naturally in the context.
While for(... in ...) is quite convenient and syntactically brief, enumerateObjectsUsingBlock: has a number of features that may or may not prove interesting:
enumerateObjectsUsingB...
Make a phone call programmatically
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The answers here are perfectly working. I am just converting Craig Mellon answer to Swift. If someone comes looking for swift answer, this will help them.
var phoneNumber: String = "telprompt://".stringByAppendingString(titleLabel.text!) // titleLabel.text has the phone nu...
Remove all elements contained in another array
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@AlecRust Convert all elements of toRemove() to upper case and change in the callback from el to el.toUpperCase().
– Sirko
Jun 17 '17 at 17:25
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Capitalize only first character of string and leave others alone? (Rails)
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capitalize converts all letters after the first letter to lowercase, so it dosn't work for the string presented in the question ("i'm from New York").
– Mark Schneider
Sep 19 '19 at 5:40
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Split an NSString to access one particular piece
...0]
Although note that it gives you an array of Substring. If you need to convert these back to ordinary strings, use map
let strings = "10/04/2011".split(separator: "/").map{ String($0) }
let firstBit = strings[0]
or
let firstBit = String(substrings[0])
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Error-Handling in Swift-Language
... thing I noticed is that there are no exceptions.
So how do they do error handling in Swift? Has anyone found anything related to error-handling?
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Is cout synchronized/thread-safe?
...ate locking. However, do things like cout get special treatment in the standard library?
4 Answers
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How can I loop through a List and grab each item?
How can I loop through a List and grab each item?
4 Answers
4
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Create boolean column in MySQL with false as default value?
...s successful or 'true'. It would be nice if MySQL actually returned 'true' and 'false' so that we didn't have to rely on the code deciding what the value means.
– tu-Reinstate Monica-dor duh
May 28 '15 at 3:17
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How to add calendar events in Android?
I'm just getting up to speed on Android, and today in a project meeting someone said that Android has no native calendar app so users just use whatever calendar app they like.
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