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When vectors are allocated, do they use memory on the heap or the stack?
... the heap and header info is on the stack, when the header info is removed from memory, like function return, what will happen to the elements memories? Are them reclaimed with the header info or not? If they are not, will this cause memory leak?
– flyrain
Sep ...
Converting HTML string into DOM elements? [duplicate]
...gt;<span></span></div>";
var doc = new DOMParser().parseFromString(xmlString, "text/xml");
console.log(doc.firstChild.innerHTML); // => <a href="#">Link...
console.log(doc.firstChild.firstChild.innerHTML); // => Link
...
Get position of UIView in respect to its superview's superview
...se this:
Objective-C
CGRect frame = [firstView convertRect:buttons.frame fromView:secondView];
Swift
let frame = firstView.convert(buttons.frame, from:secondView)
Documentation reference:
https://developer.apple.com/documentation/uikit/uiview/1622498-convert
...
Difference between knockout View Models declared as object literals vs functions
...d observable can be bound to the appropriate value of this, even if called from a different scope.
With an object literal, you would have to do:
var viewModel = {
first: ko.observable("Bob"),
last: ko.observable("Smith"),
};
viewModel.full = ko.computed(function() {
return this.first() +...
REST response code for invalid data
...d it should be treated by browsers the same as any other 4xx status code.
From RFC 4918:
The 422 (Unprocessable Entity) status code means the server understands the content type of the request entity (hence a 415(Unsupported Media Type) status code is inappropriate), and the syntax of the reque...
Rails 3 check if attribute changed
...e it does. If you assign the values using the params hash, these have come from the form.
– Peter Brown
Jan 29 '13 at 20:27
...
Parallel.ForEach vs Task.Factory.StartNew
...so takes into account the number of hardware threads available, saving you from having to work out the optimum number of Tasks to start. Check out Microsoft's Patterns of Parallel Programming article; it's got great explanations of all of this stuff in it.
– Mal Ross
...
async await return Task
...
async methods are different than normal methods. Whatever you return from async methods are wrapped in a Task.
If you return no value(void) it will be wrapped in Task, If you return int it will be wrapped in Task<int> and so on.
If your async method needs to return int you'd mark the ...
How to use int.TryParse with nullable int? [duplicate]
...Singh: We don't know whether strValue could be null or not. If it's coming from a text box, it probably can't be null. My code doesn't try to address this, but we really don't know whether or not it should address it.
– Jon Skeet
Jun 14 '13 at 17:29
...
C/C++ NaN constant (literal)?
...e is NaN, you can't compare it with another NaN value. Instead use isnan() from <math.h> in C, or std::isnan() from <cmath> in C++.
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