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Difference between declaring variables before or in loop?

... | edited May 25 '17 at 7:52 Sunil Kanzar 1,11111 gold badge88 silver badges2020 bronze badges a...
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Is there a short cut for going back to the beginning of a file by vi editor?

... 180 After opening a file using vi 1) You can press Shift + g to go the end of the file and 2...
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Alternate output format for psql

I am using PostgreSQL 8.4 on Ubuntu. I have a table with columns c1 through cN . The columns are wide enough that selecting all columns causes a row of query results to wrap multiple times. Consequently, the output is hard to read. ...
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What is the significance of load factor in HashMap?

... 271 The documentation explains it pretty well: An instance of HashMap has two parameters that affec...
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Output array to CSV in Ruby

... answered Jan 27 '11 at 22:04 Dylan MarkowDylan Markow 115k2323 gold badges272272 silver badges195195 bronze badges ...
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How can I check whether a numpy array is empty or not?

... 317 You can always take a look at the .size attribute. It is defined as an integer, and is zero (0)...
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What is the difference between a generative and a discriminative algorithm?

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Django Forms: if not valid, show form with error message

... | edited Apr 15 at 14:19 melwil 2,46011 gold badge1414 silver badges3131 bronze badges answ...
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Performing Breadth First Search recursively

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Getting the name of the currently executing method

... 180 Thread.currentThread().getStackTrace() will usually contain the method you’re calling it fro...