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REST API error return good practices [closed]
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223
So at first I was tempted to return my application error with 200 OK and a specific XML paylo...
How to list all installed packages and their versions in Python?
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answered Oct 17 '12 at 17:31
Jeff LaFayJeff LaFay
11.4k1212 gold badges6868 silver badges9797 bronze badges
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“INSERT IGNORE” vs “INSERT … ON DUPLICATE KEY UPDATE”
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1003
I would recommend using INSERT...ON DUPLICATE KEY UPDATE.
If you use INSERT IGNORE, then the ro...
Convert List into Comma-Separated String
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329
Enjoy!
Console.WriteLine(String.Join(",", new List<uint> { 1, 2, 3, 4, 5 }));
First P...
Left Align Cells in UICollectionView
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answered Mar 15 '16 at 16:23
Angel G. OlloquiAngel G. Olloqui
6,98033 gold badges2727 silver badges3030 bronze badges
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How to split (chunk) a Ruby array into parts of X elements? [duplicate]
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341
Take a look at Enumerable#each_slice:
foo.each_slice(3).to_a
#=> [["1", "2", "3"], ["4", "...
What is the inverse function of zip in python? [duplicate]
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349
lst1, lst2 = zip(*zipped_list)
should give you the unzipped list.
*zipped_list unpacks the ...
What is tail recursion?
...ple function that adds the first N natural numbers. (e.g. sum(5) = 1 + 2 + 3 + 4 + 5 = 15).
Here is a simple JavaScript implementation that uses recursion:
function recsum(x) {
if (x === 1) {
return x;
} else {
return x + recsum(x - 1);
}
}
If you called recsum(5), th...
Getting name of the class from an instance
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398
NSStringFromClass([instance class]) should do the trick.
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Creating a new dictionary in Python
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edited Nov 8 '15 at 3:49
poolie
8,03611 gold badge3838 silver badges6666 bronze badges
answered De...