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What's the difference between passing by reference vs. passing by value?
...on as defined in the CS theory is now obsolete because the technique originally defined as "pass by reference" has since fallen out of favor and is seldom used now.1
Newer languages2 tend to use a different (but similar) pair of techniques to achieve the same effects (see below) which is the primar...
How to quietly remove a directory with content in PowerShell
...o remove everything within that folder: Remove-Item './folder/*'. If you really want to clear out only files of all folders you can list all leafs and pipe it to the Remove-Item cmdlet Get-ChildItem -Recurse -File | Remove-Item
– Michael Kargl
Jun 1 '19 at 11:3...
Replacing column values in a pandas DataFrame
...strings containing numbers. You can convert them to "1" and "0", if you really want, but I'm not sure why you'd want that.)
The reason your code doesn't work is because using ['female'] on a column (the second 'female' in your w['female']['female']) doesn't mean "select rows where the value is 'fe...
XPath: How to select nodes which have no attributes?
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//node[not(@*)]
That's the XPath to select all nodes named "node" in the document without any attributes.
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How to make overlay control above all other controls?
I need to make a control appear above all other controls, so it will partially overlay them.
6 Answers
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How do I delete NuGet packages that are not referenced by any project in my solution?
...h the new version. They each have only a Manage button -- but no uninstall button. And when you look to see where they are used, you can see that they are referenced by none of the solution's projects? They are NOT displaying an Uninstall?
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How to shrink the .git folder
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you should not delete all changes older than 30 days (i think it's somehow possible exploiting git, but really not recommended).
you can call git gc --aggressive --prune, which will perform garbage collection in your repository and prune old obje...
Dependency Injection vs Factory Pattern
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When using a factory your code is still actually responsible for creating objects. By DI you outsource that responsibility to another class or a framework, which is separate from your code.
sha...
What's the fastest way to convert String to Number in JavaScript?
...);
parseInt(x, 10);
parseFloat(x);
+x;
By this quick test I made, it actually depends on browsers.
http://jsperf.com/best-of-string-to-number-conversion/2
Implicit marked the fastest on 3 browsers, but it makes the code hard to read… So choose whatever you feel like it!
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How to load a UIView using a nib file created with Interface Builder
...ing a bit elaborate, but something that should be possible. So here is a challenge for all you experts out there (this forum is a pack of a lot of you guys :) ).
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