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Precedence and bitmask operations
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You are actually doing this:
var_dump(0b10 & (0b01 == 0));
var_dump(0b10 & (0b01 != 0));
Try:
var_dump((0b10 & 0b01) == 0);
var_dump((0b10 & 0b01) != 0);
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Calculate business days
...case the whole interval is within a week, in the second case the interval falls in two weeks.
if ($the_first_day_of_week <= $the_last_day_of_week) {
if ($the_first_day_of_week <= 6 && 6 <= $the_last_day_of_week) $no_remaining_days--;
if ($the_first_day_of_week &l...
Method overloading in Objective-C?
...that method overloading is not supported in Objective-C. It is similar to PHP in that sense. As he also points out, it is common practice to define two or more methods with different signatures in the manner he examples. However, it is also possible to create one method using the "id" type. Via ...
vim “modifiable” is off
...ot something like this:
~=+www-halo=+test=+lib=+Halo=+Return2=+HeaderTest.php=
~=+www-halo=+test=+lib=+Halo=+Service=+LandmarkTest.php=
~=+www-halo=+test=+lib=+Halo=+Transaction=+AuthnetTest.php=
Which is totally useless to you since you have a different file structure. but look for the file tha...
Make first letter of a string upper case (with maximum performance)
...t.First().ToString().ToUpper() + input.Substring(1);
}
}
}
Really old answers
public static string FirstCharToUpper(string input)
{
if (String.IsNullOrEmpty(input))
throw new ArgumentException("ARGH!");
return input.First().ToString().ToUpper() + String.Join("", input....
What is the difference between the | and || or operators?
...lways used || (two pipes) in OR expressions, both in C# and PHP. Occasionally I see a single pipe used: | . What is the difference between those two usages? Are there any caveats when using one over the other or are they interchangeable?
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How do I get the fragment identifier (value after hash #) from a URL?
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To be honest, IE8 is so insecure, all the payment gateways basically is going to drop any browser not supporting TLS 1.2 next week (30 June 2018), you will not be able to do payments from them at all. So that makes all these old crappy browsers useless for an...
What is the difference between window, screen, and document in Javascript?
...t model. You can access it as window
window.screen or just screen is a small information object about physical screen dimensions.
window.document or just document is the main object of the potentially visible (or better yet: rendered) document object model/DOM.
Since window is the global object ...
How to download all files (but not HTML) from a website using wget?
How to use wget and get all the files from website?
8 Answers
8
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How to check if an object is a list or tuple (but not string)?
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Python with PHP flavor:
def is_array(var):
return isinstance(var, (list, tuple))
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