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Is mathematics necessary for programming? [closed]
...essary for programming". However, as other people have suggested in this thread, I believe there is a correlation between understanding mathematics and being able to "think algorithmically". That is, to be able to think abstractly about quantity, processes, relationships and proof.
I started progra...
Concatenating Files And Insert New Line In Between Files
... suppresses adding an extra trailing blank line):
print '\n'.join(open(f).read() for f in filenames),
Here is the ugly python one-liner that can be called from the shell and prints the output to a file:
python -c "from sys import argv; print '\n'.join(open(f).read() for f in argv[1:])," File*.tx...
How to get HTTP response code for a URL in Java?
...stance can be reused for other requests. If you're using an InputStream to read data, you should close() that stream in a finally block.
– Rob Hruska
Nov 21 '14 at 5:04
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Rolling back local and remote git repository by 1 commit
I've read the similar posts on this topic, and can't for the life of me figure out how to do this properly.
14 Answers
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Detecting 'stealth' web-crawlers
... positives when someone like me finds an interesting site that he wants to read all of, so he opens up all the links in tabs to load in the background while he reads the first one.
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How do I show my global Git configuration?
...-show-origin, also shows the origin file of each config item
How do I read one particular configuration?
Run git config user.name to get user.name, for example.
You may also specify options --system, --global, --local to read that value at a particular level.
Reference: 1.6 Getting Start...
Are negative array indexes allowed in C?
I was just reading some code and found that the person was using arr[-2] to access the 2nd element before the arr , like so:
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What are the best PHP input sanitizing functions?
...s when you know that the user provided HTML, and that you know that it's already been sanitized it using a whitelist.
Sometimes you need to generate some Javascript using PHP. Javascript does not have the same escaping rules as HTML! A safe way to provide user-supplied values to Javascript via PHP...
How can I update window.location.hash without jumping the document?
...Use the ugly #! style.
To set it:
window.location.hash = '#!' + id;
To read it:
id = window.location.hash.replace(/^#!/, '');
Since it doesn't match and anchor or id in the page, it won't jump.
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Using String Format to show decimal up to 2 places or simple integer
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@BrainSlugs83: depending on the current thread's CurrentCulture, decimal separator might not be .. Unless CultureInfo.InvariantCulture is used with string.Format, you would have to check the value of CultureInfo.NumberFormat.NumberDecimalSeparator, and that would be ...