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In C#, why is String a reference type that behaves like a value type?
...it has most of the characteristics of a value type such as being immutable and having == overloaded to compare the text rather than making sure they reference the same object.
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Difference between pre-increment and post-increment in a loop?
Is there a difference in ++i and i++ in a for loop? Is it simply a syntax thing?
22 Answers
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Does Django scale? [closed]
...e a list of Django sites on the front page of the main Django project page and then a list of Django built sites at djangosites.org. Going through the lists and picking some that I know have decent traffic we see:
Instagram: What Powers Instagram: Hundreds of Instances, Dozens of Technologies.
Pi...
Why would I ever use push_back instead of emplace_back?
...ush_back(x);
v.emplace_back(x);
After your optimizing compiler gets its hands on this, there is no difference between these two statements in terms of generated code. The traditional wisdom is that push_back will construct a temporary object, which will then get moved into v whereas emplace_back w...
Why is NaN not equal to NaN? [duplicate]
The relevant IEEE standard defines a numeric constant NaN (not a number) and prescribes that NaN should compare as not equal to itself. Why is that?
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How to remove leading and trailing zeros in a string? Python
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What about a basic
your_string.strip("0")
to remove both trailing and leading zeros ? If you're only interested in removing trailing zeros, use .rstrip instead (and .lstrip for only the leading ones).
[More info in the doc.]
You could use some list comprehension to get the sequences you w...
What exactly is LLVM?
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LLVM is a library that is used to construct, optimize and produce intermediate and/or binary machine code.
LLVM can be used as a compiler framework, where you provide the "front end" (parser and lexer) and the "back end" (code that converts LLVM's representation to actual machi...
Is the sizeof(some pointer) always equal to four?
... be size 2 on a 16-bit system (if you can find one), 4 on a 32-bit system, and 8 on a 64-bit system, but there's nothing to be gained in relying on a given size.
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How to convert IPython notebooks to PDF and HTML?
...o steps.
For HTML output, you should now use Jupyter in place of IPython and select File -> Download as -> HTML (.html) or run the following command:
jupyter nbconvert --to html notebook.ipynb
This will convert the Jupyter document file notebook.ipynb into the html output format.
Goog...
How Scalable is SQLite? [closed]
I recently read this Question about SQLite vs MySQL and the answer pointed out that SQLite doesn't scale well and the official website sort-of confirms this , however.
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