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trying to animate a constraint in swift
... need to first change the constraint and then animate the update.
self.nameInputConstraint.constant = 8
Swift 2
UIView.animateWithDuration(0.5) {
self.view.layoutIfNeeded()
}
Swift 3, 4, 5
UIView.animate(withDuration: 0.5) {
self.view.layoutIfNeeded()
}
...
How to really read text file from classpath in Java
...
With the directory on the classpath, from a class loaded by the same classloader, you should be able to use either of:
// From ClassLoader, all paths are "absolute" already - there's no context
// from which they could be relative. Therefore you don't need a leading slash.
InputStream in =...
How to convert IPython notebooks to PDF and HTML?
...need a profile to convert the notebook, what is it? Does there exist a documentation about this tool?
17 Answers
...
SQL Server Regular expressions in T-SQL
...egex library, but it gives you the basics.
(From Books Online)
Wildcard Meaning
% Any string of zero or more characters.
_ Any single character.
[ ] Any single character within the specified range
(for example, [a-f]) or set (for example, [abcdef]).
[^] Any single character not within t...
How do I check out a remote Git branch?
Somebody pushed a branch called test with git push origin test to a shared repository. I can see the branch with git branch -r .
...
void in C# generics?
I have a generic method that takes a request and provides a response.
7 Answers
7
...
Function overloading by return type?
Why don't more mainstream statically typed languages support function/method overloading by return type? I can't think of any that do. It seems no less useful or reasonable than supporting overload by parameter type. How come it's so much less popular?
...
Why does one often see “null != variable” instead of “variable != null” in C#?
...ed legal code):
// Probably wrong
if (x = 5)
when you actually probably meant
if (x == 5)
You can work around this in C by doing:
if (5 == x)
A typo here will result in invalid code.
Now, in C# this is all piffle. Unless you're comparing two Boolean values (which is rare, IME) you can writ...
What is the benefit of using $() instead of backticks in shell scripts?
...ands within commands, without losing your sanity trying to figure out if some form of escaping will work on the backticks.
An example, though somewhat contrived:
deps=$(find /dir -name $(ls -1tr 201112[0-9][0-9]*.txt | tail -1l) -print)
which will give you a list of all files in the /dir directo...
How can I reverse a NSArray in Objective-C?
...ed copy of an array, look at danielpunkass' solution using reverseObjectEnumerator.
For reversing a mutable array, you can add the following category to your code:
@implementation NSMutableArray (Reverse)
- (void)reverse {
if ([self count] <= 1)
return;
NSUInteger i = 0;
NS...