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Is it possible to use Swift's Enum in Obj-C?

I'm trying to convert some of my Obj-C class to Swift. And some other Obj-C classes still using enum in that converted class. I searched In the Pre-Release Docs and couldn't find it or maybe I missed it. Is there a way to use Swift enum in Obj-C Class? Or a link to the doc of this issue? ...
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Bash script error [: !=: unary operator expected

In my script I am trying to error check if the first and only argument is equal to -v but it is an optional argument. I use an if statement but I keep getting the unary operator expected error. ...
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What does a tilde do when it precedes an expression?

I saw it in an answer, and I've never seen it before. 5 Answers 5 ...
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How can I compare two lists in python and return matches

I want to take two lists and find the values that appear in both. 19 Answers 19 ...
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Format SQL in SQL Server Management Studio

...h complete T-SQL batch/script support (any DDL, any DML), SSMS Plugin, command-line bulk formatter, and other options. It's available for immediate/online use at http://poorsql.com, and just today graduated to "version 1.0" (it was in beta version for a few months), having just acquired support for...
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Remove rows with duplicate indices (Pandas DataFrame and TimeSeries)

...utomated weather data from the web. The observations occur every 5 minutes and are compiled into monthly files for each weather station. Once I'm done parsing a file, the DataFrame looks something like this: ...
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What are good examples of genetic algorithms/genetic programming solutions? [closed]

Genetic algorithms (GA) and genetic programming (GP) are interesting areas of research. 34 Answers ...
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How can I get a list of build targets in Ant?

...ts without having to search through the file manually. Does ant have a command for this - something like ant show-targets - that will make it list all the targets in the build file? ...
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Generate random password string with requirements in javascript

I want to generate a random string that has to have 5 letters from a-z and 3 numbers. 18 Answers ...
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How can I time a code segment for testing performance with Pythons timeit?

... You can use time.time() or time.clock() before and after the block you want to time. import time t0 = time.time() code_block t1 = time.time() total = t1-t0 This method is not as exact as timeit (it does not average several runs) but it is straightforward. time.time...