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'typeid' versus 'typeof' in C++
... the value.
typeof Reference: http://www.delorie.com/gnu/docs/gcc/gcc_36.html
typeid Reference: https://en.wikipedia.org/wiki/Typeid
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Wrapping synchronous code into asynchronous call
...ch is tricky - see blog.stephencleary.com/2012/07/dont-block-on-async-code.html and msdn.microsoft.com/en-us/magazine/mt238404.aspx . It's usually easier and cleaner to adopt async all the way, if possible.
– Stephen Cleary
Nov 15 '18 at 12:52
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How to set focus on input field?
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HTML has an attribute autofocus.
<input type="text" name="fname" autofocus>
http://www.w3schools.com/tags/att_input_autofocus.asp
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What is the difference between \r and \n?
...ines into separate list elements. It makes me wonder if this is some weird HTML artifact, or if it has to do with the way that Python ingests the string from my request object.
– Pat Jones
Nov 23 '19 at 0:24
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How do you pass arguments to define_method?
...t:
Summary article: https://blog.eq8.eu/til/metaprogramming-ruby-examples.html
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Is it possible to roll back CREATE TABLE and ALTER TABLE statements in major SQL databases?
...at transaction."
https://dev.mysql.com/doc/refman/5.7/en/implicit-commit.html
Tried a few different ways and it simply won't roll back..
Work around is to simply set a failure flag and do "drop table tblname" if one of the queries failed..
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Difference between Destroy and Delete
...ctiveRecord::Callbacks: api.rubyonrails.org/classes/ActiveRecord/Callbacks.html. One such callback is model#before_destroy which can be used to halt the final destroy() call under certain conditions.
– Todd
Mar 23 '16 at 14:39
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Django Cookies, how can I set them?
...rint(request.session['how_many_visits'])
return render(request, 'home.html', {})
If you keep visiting the page over and over, you'll see the value start incrementing up from 1 until you clear your cookies, visit on a new browser, go incognito, or do anything else that sidesteps Django's Sessi...
PDO MySQL: Use PDO::ATTR_EMULATE_PREPARES or not?
... it is cacheable..." dev.mysql.com/doc/refman/5.1/en/query-cache-in-select.html
– Andrew Ensley
May 4 '12 at 17:25
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What does the restrict keyword mean in C++?
... it does: https://gcc.gnu.org/onlinedocs/gcc-5.1.0/gcc/Restricted-Pointers.html with syntax:
int &__restrict__ rref
There is even a version for this of member functions:
void T::fn () __restrict__
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