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In Ruby how do I generate a long string of repeated text?
...ts. It certainly could (for example, automatically making a best-effort to convert the argument to a FixNum) but the language designers decided against embracing Ruby's Perlish inspirations too fully.
– FMc
Jan 15 '17 at 2:12
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How to toggle a value in Python
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The not operator negates your variable (converting it into a boolean if it isn't already one). You can probably use 1 and 0 interchangeably with True and False, so just negate it:
toggle = not toggle
But if you are using two arbitrary values, use an inline if:
...
Base64 length calculation?
...al chunks. One or two bytes extra at the end of the string will still get converted to four bytes in the base64 string when padding is added. Unless you have a very specific use, it is best to add the padding, usually an equals character. I added an extra byte for a null character in C, because A...
How to redirect 'print' output to a file using python?
... not present or None, sys.stdout will be used. Since printed arguments are converted to text strings, print() cannot be used with binary mode file objects. For these, use file.write(...) instead.
Since file object normally contains write() method, all you need to do is to pass a file object into i...
How to store a dataframe using Pandas
...at you keep the pandas table in memory as you edit and reload your script.
convert the csv to an HDF5 table
updated use DataFrame.to_feather() and pd.read_feather() to store data in the R-compatible feather binary format that is super fast (in my hands, slightly faster than pandas.to_pickle() on num...
Where can I get a “useful” C++ binary search algorithm?
... T and the type after ForwardIt is dereferenced
// must be implicitly convertible to BOTH Type1 and Type2, used in Compare.
// This is stricter than lower_bound requirement (see above)
first = std::lower_bound(first, last, value, comp);
return first != last && !comp(value,...
Choosing the default value of an Enum type without having to change values
...r any value that you want) by default
to use the trick itself, you need to convert from int by code.
there the implementation:
#region ConvertingToEnum
private int val;
static Dictionary<int, string> dict = null;
public Orientation(int val)
{
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How to recognize swipe in all 4 directions
...ad()
let swipeRight = UISwipeGestureRecognizer(target: self, action: #selector(respondToSwipeGesture))
swipeRight.direction = .right
self.view.addGestureRecognizer(swipeRight)
let swipeDown = UISwipeGestureRecognizer(target: self, action: #selector(respondToSwipeGesture))
swipe...
How do I space out the child elements of a StackPanel?
...n case you would want to re-use the margin between two containers, you can convert the margin value to a resource in an outer scope, f.e.
<Window.Resources>
<Thickness x:Key="tbMargin">0,10,0,0</Thickness>
</Window.Resources>
and then refer to this value in the inner s...
How to make an AJAX call without jQuery?
...error...
});
If you need to load a json file you can use JSON.parse() to convert the loaded data into an JS Object.
You can also integrate req.responseType='json' into the function but unfortunately there is no IE support for it, so I would stick with JSON.parse().
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