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Is a Python dictionary an example of a hash table?
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Yes, it is a hash mapping or hash table. You can read a description of python's dict implementation, as written by Tim Peters, here.
That's why you can't use something 'not hashable' as a dict key, like a list:
>>> a = {}
>>> b = ['some', 'list']
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Difference Between ViewData and TempData?
...se it all the time, but in ASP.NET Preview 5 they introduced something new called TempData.
6 Answers
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Why does scanf() need “%lf” for doubles, when printf() is okay with just “%f”?
Why is it that scanf() needs the l in " %lf " when reading a double , when printf() can use " %f " regardless of whether its argument is a double or a float ?
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How do I temporarily disable triggers in PostgreSQL?
I'm bulk loading data and can re-calculate all trigger modifications much more cheaply after the fact than on a row-by-row basis.
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CSS does the width include the padding?
... the width includes the padding size. while in FF, the width does not.
How can I make both behave the same?
5 Answers
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Which data type for latitude and longitude?
... latitude and longitude values in PostgreSQL 9.1.1 database table. I will calculate distance between two points, find nearer points by using this location values.
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What is the difference between a .xib file and a .storyboard?
Can someone explain in simple words the difference between .xib and .storyboard?
6 Answers
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Regex exactly n OR m times
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@erb if you leave out ?:, the group becomes a capturing group. Aside from the regex engine remembering stuff it doesn't have to, if you have capturing groups after this one, their IDs will change. If you use your regex for substitution, you will have to adjust the replac...
Types in Objective-C on iOS
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Awesome answer really helpful. Funny though, in Swift you can just declare a "var" and leave it at that haha :)
– user4657588
May 13 '15 at 8:14
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Rebasing remote branches in Git
...ediate Git repository to mirror a remote SVN repository, from which people can clone and work on. The intermediate repository has it's master branch rebased nightly from the upstream SVN, and we are working on feature branches. For example:
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