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How to write the Fibonacci Sequence?
...cci number
A commenter asks:
Question for the Fib() function which is based on iterator: what if you want to get the nth, for instance 10th fib number?
The itertools documentation has a recipe for this:
from itertools import islice
def nth(iterable, n, default=None):
"Returns the nth it...
Mimicking sets in JavaScript?
...se of potential conflict between built-in methods and/or properties on the base Object like the constructor property.
Sidebar on ES6: The current working version of ECMAScript 6 or somethings called ES 2015 has a built-in Set object. It is implemented now in some browsers. Since browser availabil...
Should I pass an std::function by const-reference?
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How to declare a structure in a header that is to be used by multiple files in c?
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Uses for Optional
...se no!
Advantages
Doing this reduces the presence of nulls in your code base, although it does not eradicate them. But that is not even the main point. There are other important advantages:
Clarifies Intent
Using Optional clearly expresses that the variable is, well, optional. Any reader of you...
How much faster is C++ than C#?
...
There is no strict reason why a bytecode based language like C# or Java that has a JIT cannot be as fast as C++ code. However C++ code used to be significantly faster for a long time, and also today still is in many cases. This is mainly due to the more advanced JIT...
Why does casting int to invalid enum value NOT throw exception?
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Browsers' default CSS for HTML elements
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Unpacking, extended unpacking and nested extended unpacking
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How do I modify fields inside the new PostgreSQL JSON datatype?
...alue pair or string element from left operand. Key/value pairs are matched based on their key value.
Operator '||' concatenate two jsonb values into a new jsonb value.
Since these are jsonb operators you just need to typecast to::jsonb
More info : JSON Functions and Operators
You can read my n...