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Python: most idiomatic way to convert None to empty string?
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Thanks @Lynn you are right. I realized my fault. But I know (or assume) s always a in str/unicode type or None. Yes, False is a value but I prefer this way that saves my keyboard and eyes ;)
– guneysus
Feb 25 '16 at 23:03
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indexOf method in an object array?
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I think you can solve it in one line using the map function:
pos = myArray.map(function(e) { return e.hello; }).indexOf('stevie');
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How to find out which package version is loaded in R?
I am in a process of figuring out how to use my university cluster. It has 2 versions of R installed. System wide R 2.11 (Debian 6.0) and R 2.14.2 in non-standard location.
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Is there a rule-of-thumb for how to divide a dataset into training and validation sets?
... you mean to see test data instead? If I understand right, I should divide my data first into training and test datasets, then further portion off some of my training dataset into a validation dataset. So in step 5, if I am measuring the variance on my test data, shouldn't I randomly sample populati...
Calculate the date yesterday in JavaScript
... Hmm yes just tested it out directly and you're right, not sure how my use case was different and have since completely refactored away from it. So I won't be able to see.
– Zargold
Feb 11 '18 at 18:10
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How exactly to use Notification.Builder
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Yeah: the deprecation warning is a bit premature in my opinion, but what do I know.
– Femi
Jun 18 '11 at 17:54
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Split a string by another string in C#
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I actually ended up changing my answer to this for 2 reasons: #1: To handle the splits I want to do I would need to use Regex.Escape, because my split string will often contain asterisks, etc. #2: While this program I'm writing needs no real optimiza...
Typical AngularJS workflow and project structure (with Python Flask)
...mpted to serve the index.html statically. I got around this by prepending my static file with app.root_path. Otherwise, this is pretty spot on.
– Makoto
Sep 28 '13 at 20:32
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Find index of last occurrence of a sub-string using T-SQL
...ulation unless trailing whitespace is significant and I know for sure that my datatypes are consistent, whether they be VARCHAR or NVARCHAR
– rbsdca
Mar 23 '18 at 4:43
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Are the days of passing const std::string & as a parameter over?
...g object, foo2 will outperform foo1, because foo1 will do a deep copy.
On my PC, using g++ 4.6.1, I got these results :
variable by reference: 1000000000 iterations -> time elapsed: 2.25912 sec
variable by value: 1000000000 iterations -> time elapsed: 27.2259 sec
literal by reference: 10000...