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Comma separator for numbers in R?
...rn a vector of characters. I'd only use that for printing.
> prettyNum(12345.678,big.mark=",",scientific=FALSE)
[1] "12,345.68"
> format(12345.678,big.mark=",",scientific=FALSE)
[1] "12,345.68"
EDIT: As Michael Chirico says in the comment:
Be aware that these have the side effect of padd...
How do I format a string using a dictionary in python-3.x?
...yntax, available since Python 3.6:
>>> geopoint = {'latitude':41.123,'longitude':71.091}
>>> print(f'{geopoint["latitude"]} {geopoint["longitude"]}')
41.123 71.091
Note the outer single quotes and inner double quotes (you could also do it the other way around).
...
Ruby, remove last N characters from a string?
...diomatic (and I'd argue, even more readable than other answers here):
'abc123'.delete_suffix('123') # => "abc"
'abc123'.delete_suffix!('123') # => "abc"
It's even significantly faster (almost 40% with the bang method) than the top answer. Here's the result of the same benchmark:
...
Javascript seconds to minutes and seconds
... var secs = ~~duration % 60;
// Output like "1:01" or "4:03:59" or "123:03:59"
var ret = "";
if (hrs > 0) {
ret += "" + hrs + ":" + (mins < 10 ? "0" : "");
}
ret += "" + mins + ":" + (secs < 10 ? "0" : "");
ret += "" + secs;
return ret;
}
~~ is a sh...
Is there any particular difference between intval and casting to int - `(int) X`?
...ould be used as a second parameter (base 10 by default) :
var_dump((int)"0123", intval("0123"), intval("0123", 8));
will get you :
int 123
int 123
int 83
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unable to copy/paste in mingw shell
... answered Jun 8 '17 at 22:33
mdo123mdo123
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Using generic std::function objects with member functions in one class
...;
// Call with late supplied 'this'
MyClass myInst;
callable(&myInst, 123);
What would the storage type look like without auto?
Something like this:
std::_Mem_fn_wrap<void,void (__cdecl TestA::*)(int),TestA,int> callable
You can also pass this function storage to a standard function ...
How to get the client IP address in PHP [duplicate]
...answered Oct 8 '14 at 16:20
josh123a123josh123a123
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How to convert a char array to a string?
...e we will lose some data. The possible solution is:
cout << string("123\0 123") << endl;
cout << string("123\0 123", 8) << endl;
Output is:
123
123 123
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How to secure MongoDB with username and password
... server with --auth. However, when I try to login (./mongo -u theadmin -p 12345 ) I fail. I can't login.
– murvinlai
Feb 3 '11 at 0:10
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