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Why are hexadecimal numbers prefixed with 0x?
...h is nicely divisible by 3 = log2(8).
The BCPL language used the syntax 8 1234 for octal numbers. When Ken Thompson created B from BCPL, he used the 0 prefix instead. This is great because
an integer constant now always consists of a single token,
the parser can still tell right away it's got a c...
Python: TypeError: cannot concatenate 'str' and 'int' objects [duplicate]
... you want to concatenate int or floats to a string you must use this:
i = 123
a = "foobar"
s = a + str(i)
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How can I refresh a page with jQuery?
...
123
To reload a page with jQuery, do:
$.ajax({
url: "",
context: document.body,
succe...
Filter dict to contain only certain keys?
...ent (e.g. in a lambda) this is key observation.
– gae123
Jan 27 '16 at 1:11
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How to get the URL of the current page in C# [duplicate]
...ks to Canavar's post.
If you have something like this:
"http://localhost:1234/Default.aspx?un=asdf&somethingelse=fdsa"
or like this:
"https://www.something.com/index.html?a=123&b=4567"
and you only want the part that a user would type in then this will work:
String strPathAndQuery = ...
Format date and time in a Windows batch script
...: 20140.01_131612 , must be(2014.10.26_131612)
– waza123
Oct 26 '14 at 11:16
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How to calculate dp from pixels in android programmatically [duplicate]
....applyDimension(TypedValue.COMPLEX_UNIT_DIP,
(float) 123.4, getResources().getDisplayMetrics());
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How can I undo a `git commit` locally and on a remote after `git push`
...lt;remote> <branch>
(Example push: git push -f origin bugfix/bug123)
This will undo the last commit and push the updated history to the remote. You need to pass the -f because you're replacing upstream history in the remote.
...
regex to match a single character that is anything but a space
...
123
\s matches any white-space character
\S matches any non-white-space character
You can match a...
How do I check if a number evaluates to infinity?
...
You can use isFinite in window, isFinite(123):
You can write a function like:
function isInfinite(num) {
return !isFinite(num);
}
And use like:
isInfinite(null); //false
isInfinite(1); //false
isInfinite(0); //false
isInfinite(0.00); //false
isInfinite(NaN); /...