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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 does one remove an image in Docker?
...8.4 (Mountain Lion), and whenever I try to delete a saved image, I get an error:
19 Answers
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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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How to get the part of a file after the first line that matches a regular expression?
I have a file with about 1000 lines. I want the part of my file after the line which matches my grep statement.
12 Answers
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Reuse Cucumber steps
...has changed in recent versions of cucumber, which you'll see if you get an error like "WARNING: Using 'Given/When/Then' in step definitions is deprecated, use 'step' to call other steps instead:/path/to/step_definitions/foo_steps.rb:631:in `block in '
". See the cucumber wiki for details.
The gist ...
Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '=
Error message on MySql:
7 Answers
7
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Async image loading from url inside a UITableView cell - image changes to wrong image while scrollin
...onHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
if (data) {
UIImage *image = [UIImage imageWithData:data];
if (image) {
dispatch_async(dispatch_get_main_queue(), ^{
MyCell *updat...
Initializing a static std::map in C++
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I'm using your first sample as <int,string> to bind error-numbers (from an enum) with messages - it is working like a charm - thank you.
– slashmais
Sep 22 '10 at 10:57
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List vs List
...myMap;
withWilds( myMap ); // Works
noWilds( myMap ); // Compiler error
}
You would think a List of HashMaps should be a List of Maps, but there's a good reason why it isn't:
Suppose you could do:
List<HashMap<String,String>> hashMaps = new ArrayList<HashMap<String,Str...
Entity framework self referencing loop detected [duplicate]
I have a strange error. I'm experimenting with a .NET 4.5 Web API, Entity Framework and MS SQL Server. I've already created the database and set up the correct primary and foreign keys and relationships.
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