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Windows batch: echo without new line
What is the Windows batch equivalent of the Linux shell command echo -n which suppresses the newline at the end of the output?
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How to avoid “RuntimeError: dictionary changed size during iteration” error?
... the dict:
for i in d.keys():
Note that this doesn't work in Python 3.x because keys returns an iterator instead of a list.
Another way is to use list to force a copy of the keys to be made. This one also works in Python 3.x:
for i in list(d):
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Split string based on regex
What is the best way to split a string like "HELLO there HOW are YOU" by upper case words (in Python)?
3 Answers
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Convert System.Drawing.Color to RGB and Hex Value
...rying to develop the following two. The way I am doing it may have some problem and need your kind advice. In addition, I dont know whether there is any existing method to do the same.
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if A vs if A is not None:
...ation) and use the return value of that function. Here's the summary:
object.__nonzero__(self)
Called to implement truth value testing and the built-in operation bool(); should return False or True, or their integer equivalents 0 or 1. When this method is not defined, __len__() is called, i...
How to properly compare two Integers in Java?
I know that if you compare a boxed primitive Integer with a constant such as:
10 Answers
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Remove all elements contained in another array
...) {
return toRemove.indexOf( el ) < 0;
} );
Small improvement, as browser support for Array.includes() has increased:
myArray = myArray.filter( function( el ) {
return !toRemove.includes( el );
} );
Next adaptation using arrow functions:
myArray = myArray.filter( ( el ) => !toRem...
Join between tables in two different databases?
In MySQL, I have two different databases -- let's call them A and B .
4 Answers
4
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What are Unwind segues for and how do you use them?
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In a Nutshell
An unwind segue (sometimes called exit segue) can be used to navigate back through push, modal or popover segues (as if you popped the navigation item from the navigation bar, closed the popover or dismissed the modally presented view controller). On top of that you can actu...
Multiple returns from a function
Is it possible to have a function with two returns like this:
31 Answers
31
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