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Submit form on pressing Enter with AngularJS
...ns both may fire simultaneously. This is likely to spawn $rootScope:inprog errors. Adding a comma between them creates a disjunctive, and ensures only only $digest cycle occurs. Couldn't apply the edit since it's only a single character.
– Ryan Miller
Jul 11 '1...
Check existence of directory and create if doesn't exist
...nDir, subDir))
} else {
cat("subDir does not exist")
# Handle this error as appropriate
}
Also be aware that if ~/foo doesn't exist then a call to dir.create('~/foo/bar') will fail unless you specify recursive = TRUE.
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Build tree array from flat array in javascript
...n you can merge the two for-loops. It supports multiple roots. It gives an error on dangling branches, but can be modified to ignore them. It doesn't require a 3rd-party library. It's, as far as I can tell, the fastest solution.
function list_to_tree(list) {
var map = {}, node, roots = [], i;
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Number of lines in a file in Java
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The accepted answer has an off by one error for multi line files which don't end in newline. A one line file ending without a newline would return 1, but a two line file ending without a newline would return 1 too. Here's an implementation of the accepted solutio...
Convert HTML to NSAttributedString in iOS
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In iOS 7, UIKit added an initWithData:options:documentAttributes:error: method which can initialize an NSAttributedString using HTML, eg:
[[NSAttributedString alloc] initWithData:[htmlString dataUsingEncoding:NSUTF8StringEncoding]
options:@{NSDocumentType...
C default arguments
...ngs named parameters to the table. Note that, {} (empty initializer) is an error C99.
– u0b34a0f6ae
Oct 29 '11 at 3:45
29
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Unique fields that allow nulls in Django
...True when declaring the field, or otherwise Django will throw a validation error (field required) or create a db column that doesn't accept NULL.
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Using Server.MapPath() inside a static field in ASP.NET MVC
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This function gave me an error as the result returbed by HostingEnvironment.MapPath is not the same as Server.MapPath, the latter returns an absolute url not a relative url
– John
Jun 25 '14 at 13:16
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Android Camera Preview Stretched
...ra.startPreview();
} catch (Exception e){
Log.d(TAG, "Error starting camera preview: " + e.getMessage());
}
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
final int width = resolveSize(getSuggestedMinimumWidth(), ...
Programmatically generate video or animated GIF in Python?
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ValueError: Could not find a format to read the specified file in mode 'i' - I'm getting this error on windows 2.7 winpython. Any clues?
– Vanko
Oct 4 '16 at 12:20
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