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How to remove an element from a list by index
...he index of the element you want to delete:
>>> a = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>> del a[-1]
>>> a
[0, 1, 2, 3, 4, 5, 6, 7, 8]
Also supports slices:
>>> del a[2:4]
>>> a
[0, 1, 4, 5, 6, 7, 8, 9]
Here is the section from the tutorial.
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What 'sensitive information' could be disclosed when setting JsonRequestBehavior to AllowGet
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edited Mar 17 '17 at 10:45
Community♦
111 silver badge
answered Feb 1 '14 at 14:06
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What is “vectorization”?
...ead of processing a single element of an array N times, it processes (say) 4 elements of the array simultaneously N/4 times.
(I chose 4 because it's what modern hardware is most likely to directly support; the term "vectorization" is also used to describe a higher level software transformation wher...
How do I escape spaces in path for scp copy in Linux?
...rian Gunawan
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Rails raw SQL example
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446
You can do this:
sql = "Select * from ... your sql query here"
records_array = ActiveRecord::...
Change the name of a key in dictionary
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Robert Siemer
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answered Dec 10 '10 at 7:11
moinudinmoinudin
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How to change options of with jQuery?
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614
You can remove the existing options by using the empty method, and then add your new options:
v...
Numpy first occurrence of value greater than existing value
...t save another list.
In [2]: N = 10000
In [3]: aa = np.arange(-N,N)
In [4]: timeit np.argmax(aa>N/2)
100000 loops, best of 3: 52.3 us per loop
In [5]: timeit np.where(aa>N/2)[0][0]
10000 loops, best of 3: 141 us per loop
In [6]: timeit np.nonzero(aa>N/2)[0][0]
10000 loops, best of 3: 1...
Create a completed Task
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249
The newest version of .Net (v4.6) is adding just that, a built-in Task.CompletedTask:
Task com...
How to add multiple files to Git at the same time
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To add all the changes you've made:
git add .
To commit them:
git commit -m "MY MESSAGE HERE"...