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One-line list comprehension: if-else variants

...sion you're returning for each element. Thus you need: [ x if x%2 else x*100 for x in range(1, 10) ] The confusion arises from the fact you're using a filter in the first example, but not in the second. In the second example you're only mapping each value to another, using a ternary-operator expr...
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Create a variable name with “paste” in R?

... | edited Apr 1 '11 at 9:00 answered Apr 1 '11 at 8:54 lec...
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How to convert list of key-value tuples into dictionary?

... 90 This gives me the same error as trying to split the list up and zip it. ValueError: dictionar...
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How to differentiate between time to live and time to idle in ehcache

...idated if it hasn't been requested for 4 seconds. If timeToLiveSeconds = 90, then the object will be removed from cache after 90 seconds, even if it has been requested few milliseconds in the 90th second of its short life. ...
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How do you calculate log base 2 in Java for integers?

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Cartesian product of x and y array points into single array of 2D points

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How to refer environment variable in POM.xml?

... rogerdpack 46.2k3030 gold badges200200 silver badges315315 bronze badges answered May 5 '12 at 15:11 Andrew WhiteAndre...
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How to change the DataTable Column Name?

... answered Jun 20 '11 at 5:47 MoonMoon 25.5k1616 gold badges6868 silver badges120120 bronze badges ...
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Pull to refresh UITableView without UITableViewController

...ction: #selector(refresh(_:)), for: .valueChanged) if #available(iOS 10.0, *) { tableView.refreshControl = refreshControl } else { tableView.backgroundView = refreshControl } } @objc func refresh(_ refreshControl: UIRefreshControl) { // Do your job, when done: r...
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Postgresql SELECT if string contains

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