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What is tail call optimization?
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Probably the best high level description I have found for tail calls, recursive tail calls and tail call optimization is the blog post
"What the heck is: A tail call"
by Dan Sugalski. On tail call optimization he writes:
Consider, ...
How do I view 'git diff' output with my preferred diff tool/ viewer?
...t: see my answer below.
May be this article will help you. Here are the best parts:
There are two different ways to specify an external diff tool.
The first is the method you used, by setting the GIT_EXTERNAL_DIFF variable. However, the variable is supposed to point to the full path of the exe...
T-SQL - function with default parameters
...llowed to overlay, and the "default" thus has limited usability, often the best approach will be to create a new extended version with a suffix (say CheckIfSFExistsEX here) with the extra parameters, and changing the original function to just calling the extended version with the "default" parameter...
How do I filter ForeignKey choices in a Django ModelForm?
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This is the best answer if you're using Django 1.4+
– Rick Westera
Mar 26 '15 at 0:49
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How to check for valid email address? [duplicate]
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So than basically my best bet would be if not re.match("[^@]+@[^@]+\.[^@]+", email): ?
– Bobby
Nov 5 '11 at 19:15
25
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How to think in data stores instead of databases?
...earch your entity on the basis of these indexes and believe me that is the best part, In RDBMS you can search using non-index field though it will take some time but it will. In Datastore you can not search using non-index property.
Count
In RDMBS, it is much easier to count(*) but in datastore, Pl...
How can I make an “are you sure” prompt in a Windows batchfile?
...ult on Windows XP, but available by default on Windows Server 2003.
It is best practice to favor usage of CHOICE over usage of SET /P because of the following reasons:
CHOICE accepts only keys (respectively characters read from STDIN) specified after option /C (and Ctrl+C) and outputs an error be...
T-SQL datetime rounded to nearest minute and nearest hours with using functions
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This is the best option if you're in need of fixing some data in your table that only requires time out to the minute.
– Encryption
Mar 25 at 13:50
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Mapping two integers to one, in a unique and deterministic way
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While this is correct for unbounded integers, it's not best for bounded integers. I think @blue-raja's comment makes the most sense by far.
– Kardasis
Jul 16 '13 at 13:00
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JavaScript string encryption and decryption?
...ytelus/CryptoJS but it hasn't been updated in two years. Is this still the best option for js encryption?
– syonip
Dec 29 '15 at 21:47
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