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sed: print only matching group

... 140 Match the whole line, so add a .* at the beginning of your regex. This causes the entire line to...
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remove None value from a list without removing the 0 value

... 10 Answers 10 Active ...
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How to center absolute div horizontally using CSS?

...v and want it to be centered horizontally - although I'm giving it margin:0 auto; it's not centered... 8 Answers ...
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Why do some C# lambda expressions compile to static methods?

... Action<string> withClosure = s => Console.WriteLine("My name is {0} and I am {1} years old", s, age); Action<string> withoutClosure = s => Console.WriteLine("My name is {0}", s); Console.WriteLine(withClosure.Method.IsStatic); Console.WriteLine(withoutClosure.Method.IsStatic); T...
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Cost of len() function

... 360 It's O(1) (constant time, not depending of actual length of the element - very fast) on every ty...
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How do I convert a numpy array to (and display) an image?

... 240 You could use PIL to create (and display) an image: from PIL import Image import numpy as np w...
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How to loop through all but the last item of a list?

... answered May 27 '09 at 9:04 freespacefreespace 15.1k33 gold badges3434 silver badges5555 bronze badges ...
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Why is early return slower than else?

... +100 This is a pure guess, and I haven't figured out an easy way to check whether it is right, but I have a theory for you. I tried your ...
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How does the static modifier affect this code?

...nd initialized with default values. So now the values are: A obj=null num1=0 num2=0 The second phase, execution, starts from top to bottom. In Java, the execution starts from the first static members. Here your first static variable is static A obj = new A();, so first it will create the object of...
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FAQ Section: SMS - Frequently Asked Questions - MIT App Inventor Community

...imary: #222222; --secondary: #ffffff; --tertiary: #0088cc; --quaternary: #e45735; --highlight: #ffff4d; --success: #009900; } } /* then deal with dark scheme */ @media (prefers-color-scheme: dark) { ...