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How to determine if a decimal/double is an integer?
...ecimal point.
public static void Main (string[] args)
{
decimal d = 3.1M;
Console.WriteLine((d % 1) == 0);
d = 3.0M;
Console.WriteLine((d % 1) == 0);
}
Output:
False
True
Update: As @Adrian Lopez mentioned below, comparison with a small value epsilon will discard floating-poi...
pandas GroupBy columns with NaN (missing) values
...ues are now allowed in the grouper using dropna=False:
pd.__version__
# '1.1.0.dev0+2004.g8d10bfb6f'
# Example from the docs
df
a b c
0 1 2.0 3
1 1 NaN 4
2 2 1.0 3
3 1 2.0 2
# without NA (the default)
df.groupby('b').sum()
a c
b
1.0 2 3
2.0 2 5
# with NA
df...
Get the length of a String
...e the count function as a replacement: count("Swift")
Swift 2.0, 3.0 and 3.1:
let strLength = string.characters.count
Swift 4.2 (4.0 onwards): [Apple Documentation - Strings]
let strLength = string.count
sha...
How can I make the tabs work normally on Xcode 4?
...t all the workspace tab system in Xcode...
– Nuno Gonçalves
Jun 15 '16 at 13:42
add a comment
|
...
sort object properties and JSON.stringify
...ed May 13 '19 at 19:41
Jean-François Fabre♦
122k1111 gold badges9797 silver badges156156 bronze badges
answered Dec 3 '18 at 11:54
...
What is “runtime”?
...ples.
Consider running a program compiled in Turbo-Borland C/C++ (version 3.1 from the year 1991) compiler and let it run under a 32-bit version of windows like Win 98/2000 etc.
It's a 16-bit compiler. And you will see all your programs have 16-bit pointers. Why is it so when your OS is 32bit? Bec...
What is the maven-shade-plugin used for, and why would you want to relocate Java packages?
...le, I am developing Foo library, which depends on a specific version (e.g. 1.0) of Bar library. Assuming I cannot make use of other version of Bar lib (because API change, or other technical issues, etc). If I simply declare Bar:1.0 as Foo's dependency in Maven, it is possible to fall into a probl...
How to know if an object has an attribute in Python
...produce a value. Also, hasattr only suppresses exceptions in general on Py 3.1 and earlier; in 3.2+, it only suppresses (replacing with False return) AttributeError.
– ShadowRanger
Apr 25 '18 at 19:32
...
Amazon S3 CORS (Cross-Origin Resource Sharing) and Firefox cross-domain font loading
...shed some lights on this, it'll be greatly appreciated.
<?xml version="1.0" encoding="UTF-8"?>
<CORSConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
<CORSRule>
<AllowedOrigin>https://mydomain.com</AllowedOrigin>
<AllowedMethod>GE...
Is there any Rails function to check if a partial exists?
...
Currently, I'm using the following in my Rails 3/3.1 projects:
lookup_context.find_all('posts/_form').any?
The advantage over other solutions I've seen is that this will look in all view paths instead of just your rails root. This is important to me as I have a lot of ra...