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Check empty string in Swift?
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@teradyl By "didn't work," do you mean you're getting an error, having issues with autocomplete, or something else? It should work unless something changed that I'm not aware of, but autocomplete won't always pick the right version.
– John Montgomery
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How is null + true a string?
...overload resolution fails to select a single best operator, a binding-time error occurs.
So, let's walk through this in turn.
X is the null type here - or not a type at all, if you want to think of it that way. It's not providing any candidates. Y is bool, which doesn't provide any user-define...
Entity Framework. Delete all rows in table
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@Alex Just wasted a ton of time on the error "Cannot find the object MyTable because it does not exist or you do not have permissions." for that exact reason - ALTER permissions are rarely granted to EF apps, and the error message really sends you on a wild goose ...
Ternary operator (?:) in Bash
...ug: if op1 has a nonzero exit status, op2 silently becomes the result; the error will also not be caught in -e mode. So, that expression is only safe to use if op1 can never fail (e.g., :, true if a builtin, or variable assignment without any operations that can fail (like division and OS calls)).
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IIS7 Permissions Overview - ApplicationPoolIdentity
...stem browser like chrome firefox etc from it , was getting some cache type error , i think IIS move exe to its sandbox before lunching , so i switched to apache which do not have such issues
– user889030
Jul 1 at 5:05
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What's the difference between commit() and apply() in SharedPreferences
...nd apply() method from shared preference. When I use AVD 2.3 it shows no error, but when I run the code in AVD 2.1, apply() method shows error.
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Freeze the top row for an html table only (Fixed Table Header Scrolling) [duplicate]
I want to make an html table with the top row frozen (so when you scroll down vertically you can always see it).
10 Answer...
How to debug PDO database queries?
...ated SQL queries in PHP by concatenating strings. If I got database syntax error, I could just echo the final SQL query string, try it myself on the database, and tweak it until I fixed the error, then put that back into the code.
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CSS – why doesn’t percentage height work? [duplicate]
How come a percentage value for height doesn’t work but a percentage value for width does?
6 Answers
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