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how to check the dtype of a column in python pandas
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user2314737
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answered Mar 27 '14 at 19:56
David RobinsonDavi...
Repeating characters in VIM insert mode
...eating a character while in Vim's insert mode? For example, say I would like to insert 80 dashes, in something like emacs I would type:
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How to get the IP address of the docker host from inside a docker container
As the title says. I need to be able to retrieve the IP address the docker hosts and the portmaps from the host to the container, and doing that inside of the container.
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How does one remove an image in Docker?
I'm running Docker under Vagrant under OS X 10.8.4 (Mountain Lion), and whenever I try to delete a saved image, I get an error:
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What does Class mean in Java?
...Java language used to introspect itself): https://www.oracle.com/technetwork/articles/java/javareflection-1536171.html
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C# 'is' operator performance
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Using is can hurt performance if, once you check the type, you cast to that type. is actually casts the object to the type you are checking so any subsequent casting is redundant.
If you are going to cast anyway, here is a better approach:
ISpecialType t = obj as ISpec...
Is it a bad practice to use negative margins in Android?
... supported and won't be supported by ConstraintLayout.
It is easy to work around this limitation though.
Add an helper view (height 0dp, width constrained to parent) at the bottom of your base view, at the bottom add the margin you want.
Then position your view below this one, effectively allo...
How do you do relative time in Rails?
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Sounds like you're looking for the time_ago_in_words method (or distance_of_time_in_words), from ActiveSupport. Call it like this:
<%= time_ago_in_words(timestamp) %>
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How to apply !important using .css()?
...t attribute, and as such fails to apply the rule.
You might be able to work around that problem, and apply the rule by referring to it, via addClass():
.importantRule { width: 100px !important; }
$('#elem').addClass('importantRule');
Or by using attr():
$('#elem').attr('style', 'width: 100px !...
How can I add or update a query string parameter?
...mplishes what I want to achieve:
function updateQueryStringParameter(uri, key, value) {
var re = new RegExp("([?&])" + key + "=.*?(&|$)", "i");
var separator = uri.indexOf('?') !== -1 ? "&" : "?";
if (uri.match(re)) {
return uri.replace(re, '$1' + key + "=" + value + '$2');
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