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One-line list comprehension: if-else variants
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edited Jan 18 '14 at 13:01
Tim Pietzcker
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How to migrate back from initial migration in Django 1.7?
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edited Apr 19 '18 at 20:11
supervacuo
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How to rename items in values() in Django?
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From django>=1.8 you can use annotate and F object
from django.db.models import F
MyModel.objects.annotate(renamed_value=F('cryptic_value_name')).values('renamed_value')
Also extra() is going to be deprecated, from the django docs:
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Are GUID collisions possible?
... SQL Server's implementation for their NEWID() function appears to use a 128-bit random number, so you're not going to get a collision.
For a 1% chance of collision, you'd need to generate about 2,600,000,000,000,000,000 GUIDs.
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How do you find the sum of all the numbers in an array in Java?
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In java-8 you can use streams:
int[] a = {10,20,30,40,50};
int sum = IntStream.of(a).sum();
System.out.println("The sum is " + sum);
Output:
The sum is 150.
It's in the package java.util.stream
import java.util.stream.*;
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Imitate Facebook hide/show expanding/contracting Navigation Bar
...yneWayne
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How to change the map center in Leaflet.js
... Paulo RodriguesPaulo Rodrigues
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How to download Xcode DMG or XIP file?
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9.3.1
9.2 (Last version supporting macOS 10.12.6 Sierra)
9.1
9.0.1
Xcode 8
8.3.3
8.2.1 (Last version supporting OS X 10.11.5 El Capitan)
8.1
8.0
Xcode 7
7.3.1
7.2.1 (Last version supporting OS X 10.10 Yosemite)
7.1.1
7.0.1
Xcode 6
6.4
6.3.2
6.2 (Last version supporting OS X 10.9.5 Mavericks)
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Which is better option to use for dividing an integer number by 2?
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849
Use the operation that best describes what you are trying to do.
If you are treating the num...
How to add item to the beginning of List?
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answered Dec 24 '08 at 0:37
Matt HamiltonMatt Hamilton
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