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Why does Haskell's “do nothing” function, id, consume tons of memory?
Haskell has an identity function which returns the input unchanged. The definition is simple:
1 Answer
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Difference Between ViewData and TempData?
..., one way only
It’s life lies only during the current request
If passing string then no need to typecast
If passing object then you need to typecast it but before that you need to check if it is not null
Its a property on ControllerBase, which is the parent of Controller class
TempData:
TempD...
Load a UIView from nib in Swift
...2
guard let contentView = Bundle(for: type(of: self)).loadNibNamed(String(describing: type(of: self)), owner: self, options: nil)?.first as? T else { // 3
// xib not loaded, or its top view is of the wrong type
return nil
}
self.addSubview(contentVi...
Using the star sign in grep
I am trying to search for the substring "abc" in a specific file in linux/bash
10 Answers
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How to check “hasRole” in Java Code with Spring Security?
...y 3.0 has this API
SecurityContextHolderAwareRequestWrapper.isUserInRole(String role)
You'll have to inject the wrapper, before you use it.
SecurityContextHolderAwareRequestWrapper
share
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impr...
How to create an array for JSON using PHP?
...ponse I get using var_dumb function is the following. How can I get rid of string(59)? string(59) "[{"result":"success"},{"message":"Data updated!"}]"
– James Smith
Sep 9 '17 at 23:46
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Getting the name of the currently executing method
...
Technically this will work...
String name = new Object(){}.getClass().getEnclosingMethod().getName();
However, a new anonymous inner class will be created during compile time (e.g. YourClass$1.class). So this will create a .class file for each method th...
How do I programmatically determine operating system in Java?
...find this code useful:
class ShowProperties {
public static void main(String[] args) {
System.getProperties().list(System.out);
}
}
All it does is print out all the properties provided by your Java implementations. It'll give you an idea of what you can find out about your Java en...
Linq to Entities join vs groupjoin
...
Behaviour
Suppose you have two lists:
Id Value
1 A
2 B
3 C
Id ChildValue
1 a1
1 a2
1 a3
2 b1
2 b2
When you Join the two lists on the Id field the result will be:
Value ChildValue
A a1
A a2
A a3
B b1
B b2
When you GroupJoin...
How persistent is localStorage?
...torage is Not Secure Storage
HTML5 local storage saves data unencrypted in string form in the regular browser cache.
Persistence
On disk until deleted by user (delete cache) or by the app
https://developers.google.com/web-toolkit/doc/latest/DevGuideHtml5Storage
As for a "replacement for the Cookie...