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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):
...
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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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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How to slice an array in Bash
Looking the "Array" section in the bash(1) man page, I didn't find a way to slice an array.
4 Answers
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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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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...
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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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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How to create an object property from a variable value in JavaScript? [duplicate]
I want to add a new property to 'myObj', name it 'string1' and give it a value of 'string2', but when I do it it returns 'undefined:
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