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How to compare two colors for similarity/difference

...etween 5 pre-defined colors which one is more similar to a variable color, and with what percentage. The thing is that I don't know how to do that manually step by step. So it is even more difficult to think of a program. ...
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A html space is showing as %2520 instead of %20

... as %25. The way you get %2520 is when your url already has a %20 in it, and gets urlencoded again, which transforms the %20 to %2520. Are you (or any framework you might be using) double encoding characters? Edit: Expanding a bit on this, especially for LOCAL links. Assuming you want to link t...
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Should I use Java's String.format() if performance is important?

We have to build Strings all the time for log output and so on. Over the JDK versions we have learned when to use StringBuffer (many appends, thread safe) and StringBuilder (many appends, non-thread-safe). ...
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Link vs compile vs controller

...lement it is attached to, extract the html fragment that it is attached to and create a template function. If you have used HandleBars, underscore templates or equivalent, its like compiling their templates to extract out a template function. To this template function you pass data and the return ...
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How to pretty-print a numpy.array without scientific notation and with given precision?

...printoptions to set the precision of the output: import numpy as np x=np.random.random(10) print(x) # [ 0.07837821 0.48002108 0.41274116 0.82993414 0.77610352 0.1023732 # 0.51303098 0.4617183 0.33487207 0.71162095] np.set_printoptions(precision=3) print(x) # [ 0.078 0.48 0.413 0.83 ...
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Difference between Destroy and Delete

... ActiveRecord::Persistence.delete Deletes the record in the database and freezes this instance to reflect that no changes should be made (since they can't be persisted). Returns the frozen instance. The row is simply removed with an SQL DELETE statement on the record's primary key, and no...
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What is the performance cost of having a virtual method in a C++ class?

...any of its parent classes) means that the class will have a virtual table, and every instance will have a virtual pointer. ...
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Python to print out status bar and percentage

...character (carriage return) resets the cursor to the beginning of the line and allows you to write over what was previously on the line. from time import sleep import sys for i in range(21): sys.stdout.write('\r') # the exact output you're looking for: sys.stdout.write("[%-20s] %d%%" %...
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What are the file limits in Git (number and size)?

Does anyone know what are the Git limits for number of files and size of files? 10 Answers ...
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Strip HTML from strings in Python

...e, I'm trying to find a way to only show the contents of each HTML element and not the formatting itself. If it finds '<a href="whatever.com">some text</a>' , it will only print 'some text', '<b>hello</b>' prints 'hello', etc. How would one go about doing this? ...