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How do I check if an integer is even or odd? [closed]
...viding by 2:
if (x % 2) { /* x is odd */ }
A few people have criticized my answer above stating that using x & 1 is "faster" or "more efficient". I do not believe this to be the case.
Out of curiosity, I created two trivial test case programs:
/* modulo.c */
#include <stdio.h>
int m...
Disable Drag and Drop on HTML elements?
...m only running into one minor issue. Sometimes when I go to drag a part of my application (most often the corner div of my window, which is supposed to trigger a resize operation) the web browser gets clever and thinks I mean to drag and drop something. End result, my action gets put on hold while t...
Which is faster: while(1) or while(2)?
...
while(4.3 * 3e4 >= 2 << 6) {}
while(-0.1 + 02) {}
And even to my amazement:
#include<math.h>
while(sqrt(7)) {}
while(hypot(3,4)) {}
Things get a little more interesting with user-defined functions:
int x(void) {
return 1;
}
while(x()) {}
#include<math.h>
double x(...
Are global variables in PHP considered bad practice? If so, why?
In my small PHP projects I usually go the procedural way. I generally have a variable that contains the system configuration, and when I nead to access this variable in a function, I do global $var; .
...
Best practices for reducing Garbage Collector activity in Javascript
...{ ... }).
When you perform an operation that coerces to Object like Object(myNumber) or Number.prototype.toString.call(42)
When you call a builtin that does any of these under the hood, like Array.prototype.slice.
When you use arguments to reflect over the parameter list.
When you split a string or ...
grant remote access of MySQL database from any IP address
...the same OS instance (e.g. your development machine), is to pass in the -h my_machine_name parameter. This tricks the client to identify you as 'user'@my_machine_name.example.com, rather than 'user'@localhost. This way you don't need to create and maintain dual accounts and grants for both localho...
Error in strings.xml file in Android
...
post your complete string. Though, my guess is there is an apostrophe (') character in your string. replace it with (\') and it will fix the issue. for example,
//strings.xml
<string name="terms">
Hey Mr. Android, are you stuck? Here, I\'ll clear a pat...
jquery UI dialog: how to initialize without a title bar?
...alog-titlebar {display:none}
too simple !! but i took 1 day to think why my previous id->class drilling method was not working. In fact when you call .dialog() method the div you transform become a child of another div (the real dialog div) and possibly a 'brother' of the titlebar div, so it's ...
Why is HttpClient BaseAddress not working?
...response = await client.GetAsync("resource/7");
}
Even though I answered my own question, I figured I'd contribute the solution here since, again, this unfriendly behavior is undocumented. My colleague and I spent most of the day trying to fix a problem that was ultimately caused by this oddity of...
What is the best place for storing uploaded images, SQL database or disk file system? [closed]
...there) If you have your site's root configured to a "public" folder (as in my_website/public/ instead of just my_website/), you can store the images in the my_website/my_images folder with the rest of your app. Then your img tags would reference "my_website/image.php?img_id=55" instead of "my_websit...