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What is the difference between class and instance attributes?
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Only the mutable types are shared. Like for int and str they still attached with each instances rather than class.
– Babu
Jul 17 '14 at 11:59
11
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Access lapply index names inside FUN
... n=names(x))
Here I use lapply over the indices of x, but also pass in x and the names of x. As you can see, the order of the function arguments can be anything - lapply will pass in the "element" (here the index) to the first argument not specified among the extra ones. In this case, I specify y ...
When should the volatile keyword be used in C#?
...od explanation of the volatile keyword in C#? Which problems does it solve and which it doesn't? In which cases will it save me the use of locking?
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Git: what is a dangling commit/blob and where do they come from?
...orking with your git repository, you may end up backing out of operations, and making other moves that cause intermediary blobs, and even some things that git does for you to help avoid loss of information.
Eventually (conditionally, according to the git gc man page) it will perform garbage collect...
Changing a specific column name in pandas DataFrame
...index=None, columns=None, copy=True, inplace=False)
Docstring:
Alter index and / or columns using input function or
functions. Function / dict values must be unique (1-to-1). Labels not
contained in a dict / Series will be left as-is.
Parameters
----------
index : dict-like or function, optional
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How to move Jenkins from one PC to another
...el comfortable with Jenkins as my long term "partner" in the build process and would like to "move" this Jenkins to a dedicated server.
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Compare floats in php
...same value do not need to actually be identical. So if $a is a literal .17 and $b arrives there through a calculation it can well be that they are different, albeit both display the same value.
Usually you never compare floating-point values for equality like this, you need to use a smallest accept...
Does IMDB provide an API? [closed]
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The IMDb has a public API that, although undocumented, is fast and reliable (used on the official website through AJAX).
Search Suggestions API
https://sg.media-imdb.com/suggests/a/aa.json
https://v2.sg.media-imdb.com/suggests/h/hello.json (alternate)
Format: JSON-P
Caveat: It's in JS...
How to control the line spacing in UILabel
...when put in multiple lines in a UILabel ? We can set the frame, font size and number of lines. I want to reduce the gap between the two lines in that label.
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check if directory exists and delete in one command unix
Is it possible to check if a directory exists and delete if it does,in Unix using a single command? I have situation where I use ANT 'sshexec' task where I can run only a single command in the remote machine. And I need to check if directory exists and delete it...
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