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How do I convert a string to a double in Python?
I would like to know how to convert a string containing digits to a double.
3 Answers
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Rails - Validate Presence Of Association?
... ActiveRecord::Base
has_one :profile
end
This way, Profile.create will now fail. I have to use user.create_profile or associate a user before saving a profile.
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How does the C code that prints from 1 to 1000 without loops or conditional statements work?
...ds down to 0 for all j < 1000; once j reaches 1000, it evaluates to 1.
Now if you have a + (b - a) * n, where n is either 0 or 1, you end up with a if n == 0, and b if n == 1. Using &main (the address of main()) and &exit for a and b, the term (&main + (&exit - &main) * (j/10...
How to set JAVA_HOME environment variable on Mac OS X 10.9?
...ed and most upvoted answer didn't. First thing is that the bash profile is now .zprofile, also the export command content in accepted answer didn't work for me but this did.
– cryanbhu
Sep 23 at 8:03
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How to quit scala 2.11.0 REPL?
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Have no windows machine at my disposal right now. @GovindSinghNagarkoti . What works for you ?
– Andreas Neumann
Feb 16 '15 at 9:39
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How to detect modifier key states in WPF?
...ard. Using Keyboard.IsKeyDown you can check if Control, Shift, Alt is down now.
For Shift:
if (Keyboard.IsKeyDown(Key.LeftShift) || Keyboard.IsKeyDown(Key.RightShift))
{ /* Your code */ }
For Control:
if (Keyboard.IsKeyDown(Key.LeftCtrl) || Keyboard.IsKeyDown(Key.RightCtrl))
{ /* Your code */ }...
What is Type-safe?
... Personally, I prefer to have my compiler tell me if I made that mistake.
Now, back to C#...
C# supports a language feature called covariance, this basically means that you can substitute a base type for a child type and not cause an error, for example:
public class Foo : Bar
{
}
Here, I cre...
Split string based on regex
...of Hello as well) it gets even easier:
re.split(r'[ ](?=[A-Z])', input)
Now this splits at every space followed by any upper-case letter.
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Finding child element of parent pure javascript
...ke document.getElementsByClassName('parent')[0] if you so desire.
Edit: Now that I think about it, you could just use querySelectorAll to get decendents of parent having a class name of child1:
children = document.querySelectorAll('.parent .child1');
The difference between qS and qSA is that t...
How to differentiate between time to live and time to idle in ehcache
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Now the behaviour makes sense for me. Thanks for pointing this out, especially the Math.min part.
– Prakash K
Jul 24 '15 at 10:04
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