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How to collapse all methods in Xcode?
...apshot:
Code folding was disabled in Xcode 9 beta 1, which is working now, in Xcode 9 Beta5 according to beta release note: Resolved in Xcode 9 beta 5 – IDE
Here is how:
Press and hold ⌘ (command) button in keyboard and move/hover mouse cursor on any (start or end) braces. It will automa...
How do I parallelize a simple Python loop?
...order given: [0, 4, 16, 36, 64, 100, 144, 196, 256, 324]
Multithreading
Now change ProcessPoolExecutor to ThreadPoolExecutor, and run the module again:
$ python3 -m futuretest
original inputs: [0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0]
total time to execute 19 = sum([0, 2, 3, 5, 2, 0, 0,...
Why does Java's Arrays.sort method use two different sorting algorithms for different types?
...g to Java 7 API docs cited in this answer, Arrays#Sort() for object arrays now uses TimSort, which is a hybrid of MergeSort and InsertionSort. On the other hand, Arrays#sort() for primitive arrays now uses Dual-Pivot QuickSort. These changes were implemented starting in Java SE 7.
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Passing parameters to a Bash function
...; in bash, it does not). As such, its use decreases clarity to anyone who knows, and might expect, the ksh behavior. See wiki.bash-hackers.org/scripting/obsolete
– Charles Duffy
Feb 28 '18 at 21:31
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First-time database design: am I overengineering? [closed]
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1. Thanks, that's reassuring! 2 & 3. I still don't know how indexes work, it's something I have planned to read up on. If we ever have the "problem" of reaching a million records there will probably be a budget to hire experienced developers :P Thanks for the insight into diff...
How to invoke a Linux shell command from Java
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@Narek. It should, but I don;'t know how csh handles arguments.
– KitsuneYMG
Sep 17 '09 at 12:38
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How can I check that a form field is prefilled correctly using capybara?
... prettier way:
expect(find_field('Your name').value).to eq 'John'
EDIT: Nowadays I'd probably use have_selector
expect(page).to have_selector("input[value='John']")
If you are using the page object pattern(you should be!)
class MyPage < SitePrism::Page
element :my_field, "input#my_id"
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Is there a Rake equivalent in Python?
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Paver has a similar set of goals, though I don't really know how it compares.
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How can I add a table of contents to a Jupyter / JupyterLab notebook?
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Just to update this: there is now an nbextensions extension, which bundles a whole lot of extensions together and allows you to manage them via jupyter itself. I think it's now the easiest way to get ToC2. And it provides other relevant extensions such as...
Why does int i = 1024 * 1024 * 1024 * 1024 compile without error?
...A VALUE(although 2147483648L is) in Java. The compiler literally does not know what it is, or how to use it. So it whines.
1024 is a valid int in Java, and a valid int multiplied by another valid int, is always a valid int. Even if it's not the same value that you would intuitively expect because t...