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How to check if a file exists in the Documents directory in Swift?
...MAR Why that strange string interpolation? You could use absoluteString to convert NSURL to path but it would be better to just keep the path as a string (NSString) like you do in Swift 1.2.
– Sulthan
Apr 27 '16 at 17:48
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What does @hide mean in the Android source code?
...e not accessible via SDK.
The first one is located in package com.android.internal. The second API type is a collection of classes and methods that are marked with the @hide Javadoc attribute.
Starting from Android 9 (API level 28), Google introduces new restrictions on the use of non-SDK interf...
Ruby - test for array
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Instead of testing for an Array, just convert whatever you get into a one-level Array, so your code only needs to handle the one case.
t = [*something] # or...
t = Array(something) # or...
def f *x
...
end
Ruby has various ways to harmonize an API whic...
ASP.NET MVC Razor render without encoding
...refully... Just avoid allowing all text through. For example only preserve/convert specific character sequences and always encode the rest:
@Html.Raw(Html.Encode(myString).Replace("\n", "<br/>"))
Then you have peace of mind that you haven't created a potential security hole and any special/...
How to deep watch an array in angularjs?
... or ANOTHER_ARRAY
}, true);
example
To handle this situation, I usually convert the multiple arrays I want to watch into JSON:
$scope.$watch(function() {
return angular.toJson([$scope.columns, $scope.ANOTHER_ARRAY, ... ]);
},
function() {
// some value in some array has changed
}
example...
The JPA hashCode() / equals() dilemma
...wasser: The hashcode can only change if the business ID changes, and the point is that the business ID does not change. So the hashcode doesn't change, and this works perfectly with hashed collections.
– Tom Anderson
Jan 4 '12 at 23:47
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How do I expire a PHP session after 30 minutes?
... it will check the validity for every registered session. And that is cost-intensive.
Furthermore, when using PHP's default session.save_handler files, the session data is stored in files in a path specified in session.save_path. With that session handler, the age of the session data is calculated ...
The opposite of Intersect()
Intersect can be used to find matches between two collections, like so:
8 Answers
8
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Can I load a .NET assembly at runtime and instantiate a type knowing only the name?
...thod returns a boolean and accepts a single string parameter
bool rc = Convert.ToBoolean(mi.Invoke(moduleInstance.Unwrap(), new object[] { "MyParamValue" } ));
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Detecting an “invalid date” Date instance in JavaScript
...n Borgar's answer is unnecessary as isNaN() and isFinite() both implicitly convert to number.
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