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Node.js/Windows error: ENOENT, stat 'C:\Users\RT\AppData\Roaming\npm'
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Manually creating a folder named 'npm' in the displayed path fixed the problem.
More information can be found on Troubleshooting page
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How to write to an existing excel file without overwriting data (using pandas)?
I use pandas to write to excel file in the following fashion:
11 Answers
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What's wrong with using == to compare floats in Java?
...ygnus-software.com/papers/comparingfloats/comparingfloats.htm) for why a fixed epsilon isn't always a good idea. Specifically, as the values in the floats being compared get large (or small), the epsilon is no longer appropriate. (Using epsilon is fine if you know your float values are all relativ...
When does invoking a member function on a null instance result in undefined behavior?
...behavior" is mentioned in notes in both §1.9/4 and §8.3.2/4, it's never explicitly stated. (Notes are non-normative.)
However, one can try to deduced it from §3.10/2:
An lvalue refers to an object or function.
When dereferencing, the result is an lvalue. A null pointer does not refer to a...
How to find time complexity of an algorithm
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How to find time complexity of an algorithm
You add up how many machine instructions it will execute as a function of the size of its input, and then simplify the expression to the largest (when N is very large) term and can include any simplify...
usr/bin/ld: cannot find -l
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If your library name is say libxyz.so and it is located on path say:
/home/user/myDir
then to link it to your program:
g++ -L/home/user/myDir -lxyz myprog.cpp -o myprog
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Why are mutable structs “evil”?
...ue types immutable.
First, you tend to lose changes quite easily... for example, getting things out of a list:
Foo foo = list[0];
foo.Name = "abc";
what did that change? Nothing useful...
The same with properties:
myObj.SomeProperty.Size = 22; // the compiler spots this one
forcing you to d...
How to access parent scope from within a custom directive *with own scope* in AngularJS?
...ards, but I want to avoid something totally hacky or unmaintainable. For example, I know I could do it right now by taking the $scope from the preLink parameters and iterating over it's $sibling scopes to find the conceptual "parent".
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Customizing Bootstrap CSS template
..., be completely (and easily) modifiable, be sustainable (ie – when the next version of Bootstrap is released from Twitter I don’t have to start over.
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How do you check whether a number is divisible by another number (Python)?
...e modulus operator, %
n % k == 0
evaluates true if and only if n is an exact multiple of k. In elementary maths this is known as the remainder from a division.
In your current approach you perform a division and the result will be either
always an integer if you use integer division, or
always...