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Undo changes in entity framework entities
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'n' means the number of objects. Recreating connection take about 50 ms... O(1) means it is always the same time 50ms+0*n= 50ms. O(n) means the performance is influenced by the number of objects... performance is maybe 2ms+0.5m...
Smooth GPS data
...n accuracy which is specified as a single number measured in metres. This means that instead of a covariance matrix, the accuracy in the Kalman filter can be measured by a single number, even though the location in the Kalman filter is a measured by two numbers. Also the fact that the latitude, lo...
Entity Framework: “Store update, insert, or delete statement affected an unexpected number of rows (
I am using Entity Framework to populate a grid control. Sometimes when I make updates I get the following error:
45 Answers...
Find and replace strings in vim on multiple lines
...,'>s/<search_string>/<replace_string>/g
Here '< simply means first highlighted line, and '> means last highlighted line.
Note that the behaviour might be unexpected when in NORMAL mode: '< and '> point to the start and end of the last highlight done in one of the VISUAL...
AngularJS : Prevent error $digest already in progress when calling $scope.$apply()
....js Anti Patterns
Don't do if (!$scope.$$phase) $scope.$apply(), it means your $scope.$apply() isn't high enough in the call stack.
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Clear form fields with jQuery
... there will be more type of inputs other than type=password (like SammyK said) in HTML5: type=url, type=digits, type=email, etc http://www.w3.org/TR/html5/forms.html#states-of-the-type-attribute
– Gabriel
Sep 12 '13 at 22:56
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Android: How can I get the current foreground activity (from a service)?
...o get the foregroundActivity. As you say, I should not be able to do that. Means I have to get my way around this.
– George
Oct 7 '10 at 11:36
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Select a Dictionary with LINQ
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The extensions methods also provide a ToDictionary extension. It is fairly simple to use, the general usage is passing a lambda selector for the key and getting the object as the value, but you can pass a lambda selector for both key and value.
class Some...
Failed to load resource under Chrome
...y url. When i removed, it worked. But, is there any workaround for this? I mean, I don't want to change my url.
– Amit
Apr 9 '15 at 16:53
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How to check if a variable is an integer in JavaScript?
...ance than using typeof keyword and modulus operator. but I do see what you mean now about (NaN != NaN)
– Blake Regalia
Feb 1 '13 at 22:35
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