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Capitalize only first character of string and leave others alone? (Rails)
...ave all the others the way they are. I'm running into a problem where "i'm from New York" gets turned into "I'm from new york."
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How to import a module given the full path?
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For Python 3.5+ use:
import importlib.util
spec = importlib.util.spec_from_file_location("module.name", "/path/to/file.py")
foo = importlib.util.module_from_spec(spec)
spec.loader.exec_module(foo)
foo.MyClass()
For Python 3.3 and 3.4 use:
from importlib.machinery import SourceFileLoader
foo...
Can you break from a Groovy “each” closure?
Is it possible to break from a Groovy .each{Closure} , or should I be using a classic loop instead?
6 Answers
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How can I remove a specific item from an array?
...ction removes only a single occurrence (i.e. removing the first match of 5 from [2,5,9,1,5,8,5]), while the second function removes all occurrences:
function removeItemOnce(arr, value) {
var index = arr.indexOf(value);
if (index > -1) {
arr.splice(index, 1);
}
return arr;
}...
Counting inversions in an array
...he only moment when inversions are removed is when algorithm takes element from the right side of an array and merge it to the main array.
The number of inversions removed by this operation is the number of elements left from the the left array to be merged. :)
Hope it's explanatory enough.
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How do I profile memory usage in Python?
... here: Python memory profiler
Basically you do something like that (cited from Guppy-PE):
>>> from guppy import hpy; h=hpy()
>>> h.heap()
Partition of a set of 48477 objects. Total size = 3265516 bytes.
Index Count % Size % Cumulative % Kind (class / dict of class)
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How to retrieve an element from a set without removing it?
...equire copying the whole set:
for e in s:
break
# e is now an element from s
Or...
e = next(iter(s))
But in general, sets don't support indexing or slicing.
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improve this answer
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Struggling with NSNumberFormatter in Swift for currency
...l as transactions. I need to allow the user to enter both pence and pounds from separate text fields and they need to be formatted together with currency symbols. I have this working fine at the moment but would like to make it localised as currently it only works with GBP. I have been struggling to...
Terminating a script in PowerShell
...nsole window in v3 or v4, which I use. Well, it will if you run the script from explorer, but no matter how you end the script it will do that. If running from a PowerShell command window it does not close the window.
– Joshua Nurczyk
Jan 20 '15 at 7:05
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How do I raise the same Exception with a custom message in Python?
...essage " +e.message)
This will also do the right thing if err is derived from ValueError. For example UnicodeDecodeError.
Note that you can add whatever you like to err. For example err.problematic_array=[1,2,3].
Edit: @Ducan points in a comment the above does not work with python 3 since .me...