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How can I style even and odd elements?
Is it possible to use CSS pseudo-classes to select even and odd instances of list items?
9 Answers
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Convert data.frame columns from factors to characters
... can create a logical vector of which columns are factors, and use that to selectively apply factor
f <- sapply(bobf, class) == "factor"
bobc[,f] <- lapply(bobc[,f], factor)
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Showing line numbers in IPython/Jupyter Notebooks
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Select the Toggle Line Number Option from the View -> Toggle Line Number.
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When to use MongoDB or other document oriented database systems? [closed]
...cal CRUD stuff. Storing what is essentially a huge hash, and being able to select on any of those keys, is what most people use a relational database for. If your DB is 3NF and you don’t do any joins (you’re just selecting a bunch of tables and putting all the objects together, AKA what most peo...
Python 3: ImportError “No Module named Setuptools”
...ckages into the virtualenv. I know this question has already had an answer selected but I hope this answer will help others in my situation.
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Force DOM redraw/refresh on Chrome/Mac
... leaving elements that where in a div set to display none, visible and not select-able. Resizing the window made them disappear. Adding this transform caused the "artifacts" to disappear as expected.
– Jeff Mattson
Sep 9 '19 at 17:57
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No internet on Android emulator - why and how to fix? [closed]
...Names.
Press menu button. an option menu will appear.
from the option menu select New APN.
Click on Name. provide name to apn say My APN.
Click on APN. Enter www.
Click on Proxy. enter your proxy server IP. you can get it from internet explorers internet options menu.
click on Port. enter port numbe...
UITableView row animation duration and completion callback
...entSize after animation (as it was in my case), you must use [self performSelectorOnMainThread:withObject:waitUntilDone:]; in setCompletionBlock in order to call your delegate in next runloop. if you call your delegate directly, without performSelectorOnMainThread, you get old value for tableView.c...
Android Studio inline compiler showing red errors, but compilation with gradle works fine
...for me.
Choose File option from menu on left top side of android studio.
Select the option: Invalidate Cache/Restart It will open an dialog.
Click on the first button with option: Invalidate and Restart
It will close Android Studio and restart it. Also, it will start re-indexing the project.
It ...
jQuery find events handlers registered with an object
...lem, "events" );
elem should be an HTML Element, not a jQuery object, or selector.
Please note, that this is an internal, 'private' structure, and shouldn't be modified. Use this for debugging purposes only.
In older versions of jQuery, you might have to use the old method which is:
jQuery( el...