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Prevent segue in prepareForSegue method?
Is it possible to cancel a segue in the prepareForSegue: method?
10 Answers
10
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Where do gems install?
...nt.
In a terminal run gem env
You should see an entry INSTALLATION DIRECTORY, but there is also GEM PATHS which is where it's loading all your gems from in your current environment.
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improv...
warning this call is not awaited, execution of the current method continues
...nc Task<string> GetNameAsync()
{
string firstname = await PromptForStringAsync("Enter your first name: ");
string lastname = await PromptForStringAsync("Enter your last name: ");
return firstname + lastname;
}
And use it as follows:
public static void DoStuff()
{
Task<str...
Is there “0b” or something similar to represent a binary number in Javascript
I know that 0x is a prefix for hexadecimal numbers in Javascript. For example, 0xFF stands for the number 255.
10 Answe...
How big should a UIBarButtonItem image be?
I'm looking to create my own custom Sort By Date and Sort By Number buttons that I plan on placing in the navigation bar as the right button.
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Deserializing JSON to .NET object using Newtonsoft (or LINQ to JSON maybe?)
... from the JSON object, I would use Json.NET's LINQ to JSON JObject class. For example:
JToken token = JObject.Parse(stringFullOfJson);
int page = (int)token.SelectToken("page");
int totalPages = (int)token.SelectToken("total_pages");
I like this approach because you don't need to fully deseriali...
How do I strip all spaces out of a string in PHP? [duplicate]
...
Do you just mean spaces or all whitespace?
For just spaces, use str_replace:
$string = str_replace(' ', '', $string);
For all whitespace (including tabs and line ends), use preg_replace:
$string = preg_replace('/\s+/', '', $string);
(From her...
Reflecting parameter name: abuse of C# lambda expressions or syntax brilliance?
...
This has poor interop. For example, consider this C# - F# example
C#:
public class Class1
{
public static void Foo(Func<object, string> f)
{
Console.WriteLine(f.Method.GetParameters()[0].Name);
}
}
F#:
Cl...
How can I get a list of build targets in Ant?
...thout having to search through the file manually. Does ant have a command for this - something like ant show-targets - that will make it list all the targets in the build file?
...
Case insensitive 'in'
...
username = 'MICHAEL89'
if username.upper() in (name.upper() for name in USERNAMES):
...
Alternatively:
if username.upper() in map(str.upper, USERNAMES):
...
Or, yes, you can make a custom method.
s...