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Why is there a `null` value in JavaScript?
...ll value in JS" - there is a null value of some sort in most languages and it is generally considered very useful.
The question is, "why is there an undefined value in JS". Major places where it is used:
when you declare var x; but don't assign to it, x holds undefined;
when your function gets fe...
Why would I want stage before committing in Git?
I'm new to version control and I understand that "committing" is essentially creating a backup while updating the new 'current' version of what you're working on.
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Difference between size_t and unsigned int?
...he internet and everywhere mentioned that size_t is an unsigned type so, it can represent only non-negative values.
7 Ans...
Why compile Python code?
...u compile a Python script? You can run them directly from the .py file and it works fine, so is there a performance advantage or something?
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Why does Javascript getYear() return 108?
Why does this javascript return 108 instead of 2008? it gets the day and month correct but not the year?
14 Answers
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Concept behind these four lines of tricky C code
Why does this code give the output C++Sucks ? What is the concept behind it?
9 Answers
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What is Linux’s native GUI API?
...ed the X Window System, which defines a device independent way of dealing with screens, keyboards and pointer devices.
X Window defines a network protocol for communication, and any program that knows how to "speak" this protocol can use it. There is a C library called Xlib that makes it easier to ...
How to truncate a foreign key constrained table?
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You cannot TRUNCATE a table that has FK constraints applied on it (TRUNCATE is not the same as DELETE).
To work around this, use either of these solutions. Both present risks of damaging the data integrity.
Option 1:
Remove constraints
Perform TRUNCATE
Delete manually the rows that n...
How to start a background process in Python?
...le python version. The original shell script starts several processes (utilities, monitors, etc.) in the background with "&". How can I achieve the same effect in python? I'd like these processes not to die when the python scripts complete. I am sure it's related to the concept of a daemon somehow, ...
How can I determine whether a 2D Point is within a Polygon?
I'm trying to create a fast 2D point inside polygon algorithm, for use in hit-testing (e.g. Polygon.contains(p:Point) ). Suggestions for effective techniques would be appreciated.
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