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Guards vs. if-then-else vs. cases in Haskell
...le decision you need to make. Nested if..then..else-expressions are very uncommon in Haskell, and guards should almost always be used instead.
let absOfN =
if n < 0 -- Single binary expression
then -n
else n
Every if..then..else expression can be replaced by a guard if it is at the top ...
What is a StoryBoard ID and how can i use this?
...fier:@"MyViewController"];
[self presentViewController:vc animated:YES completion:nil];
}
This will create a MyCustomViewController based on the storyboard ViewController you named "MyViewController" and present it above your current View Controller
And if you are in your app delegate you cou...
Any way to modify Jasmine spies based on arguments?
... on the parameters. Is there any way to do this in Jasmine? The best I can come up with is a hack using andCallFake:
3 Answ...
Two single-column indexes vs one two-column index in MySQL?
...u specify the columns in the right order in the index definition, a single composite index can speed up several kinds of queries on the same table." - Multiple-Column Indexes
– AlikElzin-kilaka
Sep 9 '18 at 4:46
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Hide all warnings in ipython
...y. I'm leaving this question and answer for the record in case anyone else comes across the same issue.
Quite often it is useful to see a warning once. This can be set by:
warnings.filterwarnings(action='once')
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What is the difference between .map, .every, and .forEach?
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How do you get current active/default Environment profile programmatically in Spring?
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`elif` in list comprehension conditionals
Can we use elif in list comprehension?
6 Answers
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How to get exit code when using Python subprocess communicate method?
... I retrieve the exit code when using Python's subprocess module and the communicate() method?
5 Answers
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