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When should I use nil and NULL in Objective-C?
...epresent an object
– cobbal
Oct 14 '09 at 5:43
41
also, in MacTypes.h there is #define nil NULL
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Handler “ExtensionlessUrlHandler-Integrated-4.0” has a bad module “ManagedPipelineHandler” in its mo
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+250
The problem
You are using SimpleWorkerRequest in a scenario that it wasn't designed for. You are using it inside of IIS. If you look ...
OO Design in Rails: Where to put stuff
...
Adam Zerner
10.6k1313 gold badges5454 silver badges115115 bronze badges
answered Jul 1 '09 at 21:35
Yehuda KatzYeh...
OSX - How to auto Close Terminal window after the “exit” command executed.
...or me
– Frankenmint
Dec 26 '15 at 3:08
Obvious and clean, perfect.
– aydinugur
...
How to display pandas DataFrame of floats using a format string for columns?
... '${:,.2f}'.format
df = pd.DataFrame([123.4567, 234.5678, 345.6789, 456.7890],
index=['foo','bar','baz','quux'],
columns=['cost'])
print(df)
yields
cost
foo $123.46
bar $234.57
baz $345.68
quux $456.79
but this only works if you want every float to...
What is the iBeacon Bluetooth Profile
...
For an iBeacon with ProximityUUID E2C56DB5-DFFB-48D2-B060-D0F5A71096E0, major 0, minor 0, and calibrated Tx Power of -59 RSSI, the transmitted BLE advertisement packet looks like this:
d6 be 89 8e 40 24 05 a2 17 6e 3d 71 02 01 1a 1a ff 4c 00 02 15 e2 c5 6d b5 df fb 48 d2 b0 60 ...
How to convert a string into double and vice versa?
...nearest int can then be done as
int myInt = (int)(myDouble + (myDouble>0 ? 0.5 : -0.5))
I'm honestly not sure if there's a more streamlined way to convert back into a string than
NSString* myNewString = [NSString stringWithFormat:@"%d", myInt];
...
How to convert a currency string to a double with jQuery or Javascript?
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Remove all non dot / digits:
var currency = "-$4,400.50";
var number = Number(currency.replace(/[^0-9.-]+/g,""));
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Block Comments in a Shell Script
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answered Jun 4 '09 at 0:02
sunny256sunny256
7,98822 gold badges2222 silver badges2222 bronze badges
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Format a datetime into a string with milliseconds
...me('%Y-%m-%d %H:%M:%S.%f')[:-3]
>>>> OUTPUT >>>>
2020-05-04 10:18:32.926
Note: For Python3, print requires parentheses:
print(datetime.utcnow().strftime('%Y-%m-%d %H:%M:%S.%f')[:-3])
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