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Count, size, length…too many choices in Ruby?
... faster.
Because these ORMs are so prevalent I following the principle of least astonishment. In general if I have something in memory already, then I use .size, and if my code will generate a request to a database (or external service via an API) I use .count.
...
Creating folders inside a GitHub repository without using Git
...e a new folder from the web interface, but it would require you to have at least one file within the folder when creating it.
When using the normal way of creating new files through the web interface, you can type in the folder into the file name to create the file within that new directory.
For e...
Bulk insert with SQLAlchemy ORM
...ifferent
methods of inserting rows, going from the most automated to the least.
With cPython 2.7, runtimes observed:
classics-MacBook-Pro:sqlalchemy classic$ python test.py
SQLAlchemy ORM: Total time for 100000 records 12.0471920967 secs
SQLAlchemy ORM pk given: Total time for 100000 records 7....
Finding duplicates in O(n) time and O(1) space
...for
The first loop permutes the array so that if element x is present at least once, then one of those entries will be at position A[x].
Note that it may not look O(n) at first blush, but it is - although it has a nested loop, it still runs in O(N) time. A swap only occurs if there is an i such ...
How to create a Custom Dialog box in android?
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This looks like the best solution to me (it uses the least amount of code). Why did you choose the answer by Chintan Khetiya? What makes it better than this one?
– wojciii
Apr 24 '13 at 13:29
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Best way to center a on a page vertically and horizontally? [duplicate]
... not work when the OP asked this question, I think, for modern browsers at least, the best solution is to use display: flex or pseudo classes.
You can see an example in the following fiddle.
Here is the updated fiddle.
For pseudo classes an example could be:
.centerPseudo {
display:inline-blo...
When to use the JavaScript MIME type application/javascript instead of text/javascript?
...sers have to read all the JS files because they don't execute properly? At least, it's honest by Microsoft ;)
– thejh
Nov 4 '10 at 21:15
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Returning null as an int permitted with ternary operator but not if statement
...nce type in common in the type hierarchy of T1 and T2. (They both share at least Object, so there is always a most specific reference type.)
– Ted Hopp
Nov 12 '11 at 23:13
8
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How do you specify that a class property is an integer?
...ks or add a Math.round to a specialised version of guard, but this will at least ensure you're not trying to use two separate numeric types together – imagine you have GBP and USD and try to add those, that would likely not be what you intended.
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Form inside a table
...a in the table for it to be a significant burden on people's bandwidth (at least when compared to the size of a typical webpage). Requiring users to load another page between choosing to edit a row and being able to make their changes, OTOH, would be an annoying extra interaction that they would hav...