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Pandas get topmost n records within each group
... DataFrames only. Which is rather unfortunate, because what if you want to select more than one column?
– oulenz
Oct 23 '19 at 13:53
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How can I check if an element exists in the visible DOM?
...to the original question).
That's as simple as using any of the browser's selecting method, and checking it for a truthy value (generally).
For example, if my element had an id of "find-me", I could simply use...
var elementExists = document.getElementById("find-me");
This is specified to eithe...
How to hide soft keyboard on android after clicking outside EditText?
...d to do anything, it just has to exist for the parent view to be focusable/selectable, which is necessary for stealing the focus from the child EditText
– Jacob R
Aug 30 '17 at 21:20
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How to checkout in Git by date?
...-parse won't work, because it doesn't offer an option to use that date for selecting the commits. Instead, you can use the following.
git checkout $(
git log --reverse --author-date-order --pretty=format:'%ai %H' master |
awk '{hash = $4} $1 >= "2016-04-12" {print hash; exit 0 }
)
(If you...
Android: ListView elements with multiple clickable buttons
...
For future readers:
To select manually the buttons with the trackball use:
myListView.setItemsCanFocus(true);
And to disable the focus on the whole list items:
myListView.setFocusable(false);
myListView.setFocusableInTouchMode(false);
myListVie...
How can I change a secret Gist to public?
...
Update:
You can still convert a secret gist to a public gist by first selecting "Edit" -> "Make Public". This feature has been partially rolled back, however, since 12/15/16 and you will no longer be able to switch it back to secret.
From the docs:
After creating a gist, you cannot conv...
How to delete large data of table in SQL without log?
...uch bigger then records that will remain in the table, i found that simple select into temp table of the records that will stay in and drop original table and rename of the temp table is much faster. Given that you don't use identity Id foreign key somewhere.
– Vladimir Bozic
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How do I pass multiple parameters into a function in PowerShell?
...est-Path $_ -PathType 'Leaf' })]
[ValidateScript({ (Get-Item $_ | select -Expand Extension) -eq ".csv" })]
[string] $Path
)
}
In this example, we are assured not only that $Path exists, but that it is a file, (as opposed to a directory) and has a .csv extension. ($_ refers to...
IntelliJ IDEA jump from interface to implementing class in Java
...e some shortcut that would allow me after creating method in an interface, select and jump to implementing class of that interface?
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Detect backspace in empty UITextField
...ss UITextField and implement canPerformAction:withSender: to return NO for select: and selectAll: actions when the text is equal to the string @"\u200B".
– ma11hew28
Oct 19 '11 at 21:56
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