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How to add a new row to an empty numpy array
... sometimes you cannot guess the dimensions, it's life. However you can allocate a big enough array and give values to its views. I do not like it though, because there are unwanted values that one has to find a way to "mask". This idea of masking really does not fit my taste.
...
On localhost, how do I pick a free port number?
...h 65535). The main thing if you have a variable number of listeners is to allocate a range to your app - say 20000-21000, and CATCH EXCEPTIONS. That is how you will know if a port is unusable (used by another process, in other words) on your computer.
However, in your case, you shouldn't have a...
How to calculate time in hours between two dates in iOS
...ate: (NSDate *) dateT {
NSMutableString *timeLeft = [[NSMutableString alloc]init];
NSDate *today10am =[NSDate date];
NSInteger seconds = [today10am timeIntervalSinceDate:dateT];
NSInteger days = (int) (floor(seconds / (3600 * 24)));
if(days) seconds -= days * 3600 * 24;
...
When to use references vs. pointers
...pret at first sight.
Imho, references are as good as pointers when no (re)allocation nor rebinding (in the sense explained before) is needed. Moreover, if a developer only uses pointers for arrays, functions signatures are somewhat less ambiguous. Not to mention the fact that operators syntax is wa...
List directory in Go
...t complete answer here. It's worth noting that there is no memory usage or allocs reported by this benchmark. It's possible the faster implementations use more memory. It's also possible that the number of CPU cores on the tester's computer hurts/helps the concurrent filepath.Walk. Furthermore, file...
Why does Azure deployment take so long?
...essions as an outsider looking in:
Among other things:
Hardware must be allocated from the available pool of servers
The VHD of the core OS must be uploaded to the machine
A VM instance must be initialized and booted off that VHD image
Your application package must be copied to the VM and install...
What's the fastest algorithm for sorting a linked list?
...sort a linked list of ints. I tried with a linked list where each node was allocated with malloc() and a linked list where the nodes were laid out linearly in an array, so the cache performance would be better. I compared these with the built-in qsort, which included copying everything from a fragme...
What is the difference between a .xib file and a .storyboard?
...s between elements defining their position and sizing.
3)Usually fast and allocates less memory.
4)It's not compatible prior to iOS 5 .
5)"Dynamic" and "Prototype" cells can be used easily.
6)Storyboards best to use for the apps with a small to medium amount of screens.
The best Answer I have s...
How do I call one constructor from another in Java?
...hat you mean by "creating" - the object is "created" in that its memory is allocated and the type is set before any constructor bodies are executed. Constructors are initialization rather than creation. In particular, the type of the object is its "final" type right from the start - so if you call a...
Handling Touch Event in UILabel and hooking it up to an IBAction
...= YES;
UITapGestureRecognizer *tapGesture =
[[UITapGestureRecognizer alloc] initWithTarget:self
action:@selector(labelTap)];
[label addGestureRecognizer:tapGesture];
The trick is to enable user interaction.
...