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iOS Detect 3G or WiFi
...TelephonyNetworkInfo *netinfo = [[CTTelephonyNetworkInfo alloc] init];
_carrier = [[netinfo subscriberCellularProvider] carrierName];
if ([netinfo.currentRadioAccessTechnology isEqualToString:CTRadioAccessTechnologyGPRS]) {
NSLog(@"2G");
} else if ([netinfo.currentRadioAccessTec...
Use of 'const' for function parameters
... It’s like when the bad guy promises not to kill someone in a movie and orders his henchman to kill them instead.
Those superfluous const’s are worth no more than a promise from a movie bad-guy.
But the ability to lie gets even worse:
I have been enlightened that you can mismatch const in ...
Changing image size in Markdown
... to resize the image. Do not forget the space before the =.
You can skip the HEIGHT
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Move the most recent commit(s) to a new branch with Git
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Is the order of cherry picking important?
– kon psych
Apr 23 '15 at 22:04
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How do I programmatically click a link with javascript?
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Note that if the a link has target="_blank" property, the browser's popup blocker will be activated for the new window.
– wonsuc
Feb 26 '19 at 6:11
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How do I measure time elapsed in Java? [duplicate]
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Which types to use in order to accomplish this in Java?
The short answer is a long. Now, more on how to measure...
System.currentTimeMillis()
The "traditional" way to do this is indeed to use System.currentTimeMillis():
long startTime = Syste...
How to iterate over rows in a DataFrame in Pandas
...Do you want to compute something? In that case, search for methods in this order (list modified from here):
Vectorization
Cython routines
List Comprehensions (vanilla for loop)
DataFrame.apply(): i) Reductions that can be performed in Cython, ii) Iteration in Python space
DataFrame.itertuples() a...
How to run a Python script in the background even after I logout SSH?
...gs):
if os.fork(): return
func(*args, **kwargs)
os._exit(os.EX_OK)
return wrapper
@daemon
def my_func(count=10):
for i in range(0,count):
print('parent pid: %d' % os.getppid())
time.sleep(1)
my_func(count=10)
#still in parent thread
time.sleep(2)
#after...
How do you uninstall all dependencies listed in package.json (NPM)?
... has your package.json file and run the following:
for package in `ls node_modules`; do npm uninstall $package; done;
In the case of globally-installed packages, switch into your %appdata%/npm folder (if on Windows) and run the same command.
EDIT: This command breaks with npm 3.3.6 (Node 5.0). I...
What's the difference between SoftReference and WeakReference in Java?
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In Java; order from strongest to weakest, there are: Strong, Soft, Weak and Phantom
A Strong reference is a normal reference that protects the referred object from collection by GC. i.e. Never garbage collects.
A Soft reference i...