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Unresolved external symbol on static class members
.../stackoverflow.com/a/11711082/55721)
If using older versions of the C++ standard, you must add the definitions to match your declarations of X and Y
unsigned char test::X;
unsigned char test::Y;
somewhere. You might want to also initialize a static member
unsigned char test::X = 4;
and again, yo...
curl_exec() always returns false
...com/api
Every time I tried to access the link directly from a browser it converted to something likehttps://www.xn--eexample-0m3d.com/api.
It may seem to you that they are equal but if you check the encoding of the hyphens here you'll see that the first hyphen is a unicode characters U+2010 and t...
Render HTML to PDF in Django site
For my django powered site, I am looking for an easy solution to convert dynamic html pages to pdf.
8 Answers
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How to load program reading stdin and taking parameters in gdb?
Question cribbed from here .
Unfortunately I don't understand the solution and am not sure what to do beyond compiling with the -g option and running the command M-x gdb.
...
Parse string to date with moment.js
...'s string is in a standard Date format. Stephen Paul's answer shows how to convert any string, given a specific format, to a date that can be manipulated.
– Agamemnus
Mar 23 '19 at 21:05
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What does [].forEach.call() do in JavaScript?
... Array, it is possible to iterate over it
with forEach(). It can also be converted to a real Array using
Array.from().
However, some older browsers have not implemented NodeList.forEach()
nor Array.from(). This can be circumvented by using
Array.prototype.forEach() — see this document...
How to combine two or more querysets in a Django view?
...ne, since itertools is implemented in C. It also consumes less memory than converting each queryset into a list before concatenating.
Now it's possible to sort the resulting list e.g. by date (as requested in hasen j's comment to another answer). The sorted() function conveniently accepts a generat...
Django ManyToMany filter()
...[<id1>, <id2>, <id3>])
# and by zone object (object gets converted to pk under the covers)
users_in_zones = User.objects.filter(zones__in=[zone1, zone2, zone3])
The double underscore (__) syntax is used all over the place when working with querysets.
...
How do I add more members to my ENUM-type column in MySQL?
...ySQL is notorious for allowing garbage into ENUM columns. It will silently convert non-conforming values to empty strings, for instance. Are you 100% sure you don't have any offending values? No empty strings? No leading or trailing whitespace? Case differences? Accented characters?
...
Preserving order with LINQ
...ts, but the elements which are returned will be in the same order.
If you convert to a different data structure, e.g. with ToLookup or ToDictionary, I don't believe order is preserved at that point - but that's somewhat different anyway. (The order of values mapping to the same key is preserved for...