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How to clear ostringstream [duplicate]
...them, then you don't need to call clear().
Usually it is easier, cleaner, and more straightforward (straightforwarder?) just to use a new std::ostringstream object instead of reusing an existing one, unless the code is used in a known performance hot spot.
...
How many concurrent requests does a single Flask process receive?
...a single core has multiple execution units and an instruction decoder that converts the "machine code" seen from the software side into the actual hardware micro-ops that are dispatched to the individual execution units.
– Michael Geary
Aug 10 '19 at 17:23
...
How do I give text or an image a transparent background using CSS?
... it easier to discern levels of hierarchy, and it's far easier to reliably convert tabs to spaces and so is a more-compatible form of all readers.
– Slipp D. Thompson
Feb 6 '16 at 11:07
...
Filter rows which contain a certain string
...mail in the comments above. You can use regular expressions for the second and subsequent arguments of filter like this:
dplyr::filter(df, !grepl("RTB",TrackingPixel))
Since you have not provided the original data, I will add a toy example using the mtcars data set. Imagine you are only intereste...
WSDL vs REST Pros and Cons
... API. When I do, I expect I'll wish for a WSDL, which my tools will gladly convert into a set of proxy classes, so I can just call what appear to be methods. Instead, I suspect that in order to consume a non-trivial REST-based API, it will be necessary to write by hand a substantial amount of "light...
What does CultureInfo.InvariantCulture mean?
...ates and decimal / currency values.
This will matter for you when you are converting input values (read) that are stored as strings to DateTime, float, double or decimal. It will also matter if you try to format the aforementioned data types to strings (write) for display or storage.
If you know...
Which characters make a URL invalid?
...ifiers), as defined in RFC 3987, which are technically not URIs but can be converted to URIs simply by percent-encoding all non-ASCII characters in the IRI.
Per modern spec, the answer is "yes". The WHATWG Living Standard simply classifies everything that would previously be called "URIs" or "IRIs"...
Mimicking sets in JavaScript?
...ray of all keys in the Set
// returns the original key (not the string converted form)
keys: function() {
var results = [];
this.each(function(data) {
results.push(data);
});
return results;
},
// clears the Set
clear: function() {
...
jQuery: Return data after ajax call success [duplicate]
...ses.
For differences between jQuery and other implementations, and how to convert jQuery promises to Promises/A+ compliant, see Coming from jQuery by Kris Kowal et al. on the Q library wiki and Promises arrive in JavaScript by Jake Archibald on HTML5 Rocks.
How to return a real promise
The functi...
Sorting dictionary keys in python [duplicate]
... have an elegant solution which gives (key,value) pairs sorted by key. ...and doesn't require providing the dict variable name more than once (I tend to have very long descriptive variable names). d.iteritems() still seems the most useful.
– travc
Jan 30 '13 ...