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How to remove focus without setting focus to another control?
I like my UIs to be intuitive; each screen should naturally and unobtrusively guide the user on to the next step in the app. Barring that, I strive to make things as confusing and confounding as possible.
...
What is Express.js?
...deling) to provide a backend for your Node.js application. Express.js basically helps you manage everything, from routes, to handling requests and views.
Redis is a key/value store -- commonly used for sessions and caching in Node.js applications. You can do a lot more with it, but that's what I'm ...
Can we have functions inside functions in C++?
...rm of a lambda:
int main() {
// This declares a lambda, which can be called just like a function
auto print_message = [](std::string message)
{
std::cout << message << "\n";
};
// Prints "Hello!" 10 times
for(int i = 0; i < 10; i++) {
print...
Why can't Python find shared objects that are in directories in sys.path?
...le LD_LIBRARY_PATH works on many
Unix-like systems, it doesn't work on
all; for example, this functionality
is available on HP-UX but as the
environment variable SHLIB_PATH, and
on AIX this functionality is through
the variable LIBPATH (with the same
syntax, a colon-separated list).
...
std::function vs template
...buggy program to your customer.
Moreover, as you correctly pointed out, calls to template functions are resolved statically (i.e. at compile time), so the compiler has all the necessary information to optimize and possibly inline the code (which would not be possible if the call were performed thr...
How do I quickly rename a MySQL database (change schema name)?
...es. You might want to do a mysqldump to move the views, after first moving all the tables. Also note that SHOW TABLES will show tables AND views, so beware.
– tuomassalo
Nov 1 '13 at 12:38
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How to add pandas data to an existing csv file?
...
Thanks for the answer. This will allow me append new df on row-wise. But could you let me know how can I append the new df on column-wise?
– datanew
Nov 9 '18 at 21:30
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MVC pattern on Android
... means a part of the Activity instantiation. You CAN (but do not have to) call various Activity methods that interact with your views when and if you see fit. Second question: Assuming Activity is intended to take the "controller" role (I believe many Android devs see it that way) why not talk to yo...
Regex Match all characters between two strings
...his is(.*)sentence.
The important thing here is that you activate the "dotall" mode of your regex engine, so that the . is matching the newline. But how you do this depends on your regex engine.
The next thing is if you use .* or .*?. The first one is greedy and will match till the last "sentence"...
Why is volatile needed in C?
...olatile variable.
There are at least three common reasons to use it, all involving situations where the value of the variable can change without action from the visible code: When you interface with hardware that changes the value itself; when there's another thread running that also uses the ...