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Element-wise addition of 2 lists?
..., list2)]
[5, 7, 9]
Timing comparisons:
>>> list2 = [4, 5, 6]*10**5
>>> list1 = [1, 2, 3]*10**5
>>> %timeit from operator import add;map(add, list1, list2)
10 loops, best of 3: 44.6 ms per loop
>>> %timeit from itertools import izip; [a + b for a, b in izip(lis...
XML attribute vs XML element
...-2/#derivation-by-list
– porges
Jun 27 '10 at 23:31
6
I'd say that first point is correct and lis...
Strings are objects in Java, so why don't we use 'new' to create them?
...more than once. For example, consider the (contrived) code:
for (int i = 0; i < 10; i++) {
System.out.println("Next iteration");
}
If we didn't have interning of Strings, "Next iteration" would need to be instantiated 10 times, whereas now it will only be instantiated once.
...
Swift - class method which must be overridden by subclass
...
As of Swift 2.0 there are now protocol extensions too :) Apple Reference.
– Ephemera
Sep 13 '15 at 9:25
4
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Git push results in “Authentication Failed”
... |
edited Jul 17 '18 at 0:01
Community♦
111 silver badge
answered Jan 9 '14 at 17:59
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What is the best way to uninstall gems from a rails3 project?
...ve.So every time you run bundler it'll recheck dependencies
EDIT - 24.12.2014
I see that people keep coming to this question I decided to add a little something.
The answer I gave was for the case when you maintain your gems global. Consider using a gem manager such as rbenv or rvm to keep sets of...
How can I uninstall an application using PowerShell?
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160
$app = Get-WmiObject -Class Win32_Product | Where-Object {
$_.Name -match "Software Name"
...
What's the best practice for primary keys in tables?
...DBMS!
– onedaywhen
Jan 26 '12 at 16:27
@onedaywhen- I wouldnt. trust the personnel officer. People leave, new ones com...
Extract filename and extension in Bash
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answered Jun 8 '09 at 14:05
PeteshPetesh
79.3k33 gold badges8585 silver badges107107 bronze badges
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Getting reference to the top-most view/window in iOS application
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