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How to check if Location Services are enabled?
... Thank you for the code. Checking for location manager: lm.getAllProviders().contains(LocationManager.GPS_PROVIDER) (or NETWORK_PROVIDER) would make sure that you do not throw the user to a settings page where there is no network option.
– petter
N...
How to count the number of files in a directory using Python
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For all kind of files, subdirectories included:
import os
list = os.listdir(dir) # dir is your directory path
number_files = len(list)
print number_files
Only files (avoiding subdirectories):
import os
onlyfiles = next(os.w...
python design patterns [closed]
...for their existence.
It's nothing more than
class Null(object):
def __init__(self, *args, **kwargs):
"Ignore parameters."
return None
def __call__(self, *args, **kwargs):
"Ignore method calls."
return self
def __getattr__(self, mname):
"Ignore...
How to Unit test with different settings in Django?
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EDIT: This answer applies if you want to change settings for a small number of specific tests.
Since Django 1.4, there are ways to override settings during tests:
https://docs.djangoproject.com/en/dev/topics/testing/tools/#overriding-settings
TestCase will have a self.settings context ma...
Determine what attributes were changed in Rails after_save callback?
I'm setting up an after_save callback in my model observer to send a notification only if the model's published attribute was changed from false to true. Since methods such as changed? are only useful before the model is saved, the way I'm currently (and unsuccessfully) trying to do so is as fol...
Java “lambda expressions not supported at this language level”
...: android { compileOptions { sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } }
– BaDo
Sep 25 '15 at 2:30
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Check if a given key already exists in a dictionary
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I usually just use get if I'm going to be pulling the item out of the dictionary anyway. No sense in using in and pulling the item out of the dictionary.
– Jason Baker
Oct 21 '09 at 19:12
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CSS selector for other than the first child and last child
I am making a very advanced website. My question: Is it possible to select all the other children except for the :first-child and the :last-child ? I know there is a :not() selector but it doesn't work with more than one not in the parentheses. This is what I have:
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How to set radio button checked as default in radiogroup?
I have created RadioGroup and RadioButton dynamically as following:
8 Answers
8
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How to get result of console.trace() as string in javascript with chrome or firefox?
...don't define names for functions and I also can not get their names with callee.caller.name .
6 Answers
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