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How to set initial size of std::vector?
... in my experience, it's fairly unusual for either of these to make a huge difference in performance--but either can affect correctness under some circumstances. In particular, as long as no reallocation takes place, iterators into the vector are guaranteed to remain valid, and once you've set the si...
D3.js: How to get the computed width and height for an arbitrary element?
...ns(selection) {
var dimensions = null;
var node = selection.node();
if (node instanceof SVGGraphicsElement) { // check if node is svg element
dimensions = node.getBBox();
} else { // else is html element
dimensions = node.getBoundingClientRect();
}
console.log(dimensions);
ret...
What is the difference between single-quoted and double-quoted strings in PHP?
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PHP strings can be specified not just in two ways, but in four ways.
Single quoted strings will display things almost completely "as is." Variables and most escape sequences will not be interpreted. The exception is that to display a literal sing...
Convert JS date time to MySQL datetime
...to convert JS dateTime to MySQL datetime? Also is there a way to add a specific number of minutes to JS datetime and then pass it to MySQL datetime?
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Struggling trying to get cookie out of response with HttpClient in .net 4.5
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^^ System.Linq is only required if you wish to utilize the .Cast<> method, it's not required for the cookie retrieval, but this should be self explanatory :)
– MikeDub
Jan 9 '19 at 2:55
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Sql Server equivalent of a COUNTIF aggregate function
...QLite has no ISNULL, instead you can do CASE WHEN myColumn IS NULL, or use ifnull ( stackoverflow.com/a/799406/1861346 )
– Matt
Oct 28 '17 at 2:55
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Initialising an array of fixed size in python [duplicate]
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The question specified ".. yet to be populated with values". The Python docs indicate "None is typically used to represent absence of a value". My example produced such a list of the defined size, in the shortest amount of code. Its the close...
How to convert int to NSString?
.... In the code of your comment, force casting with (id) and assigning to a different type is a clear programming mistake: you should never do that. It's like swizzling a method and then making an argument about that method not doing what it was originally doing.
– Cœur
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Iterate a list with indexes in Python
... first one and a half lines of the question instead of the whole question. If you get to the end of the second line he says he wants to use it instead of for i in range(len(name_of_list)): which is what led me to provide an example using a for instead of what was shown in the first part.
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The Ruby %r{ } expression
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If you use spaces as your delimiter, your regular expression will break if you add spaces to it later. I think the idea is to use delimiters that don't match anything in your regular expression, with curly braces as the prefe...