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Check if value already exists within list of dictionaries?
...sing the above code can give you a KeyError. You can fix this by using get and providing a default value. If you don't provide a default value, None is returned.
if not any(d.get('main_color', default_value) == 'red' for d in a):
# does not exist
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What is the default height of UITableViewCell?
...l never forget that number.
44px is also the default height for UIToolbar and UINavigationBar. (Both switch to 32px when autorotated to landscape orientation.)
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Pandas: create two new columns in a dataframe with values calculated from a pre-existing column
I am working with the pandas library and I want to add two new columns to a dataframe df with n columns (n > 0).
These new columns result from the application of a function to one of the columns in the dataframe.
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Convert object to JSON in Android
Is there a simple method to convert any object to JSON in Android?
6 Answers
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How should I copy Strings in Java?
...e safe. The latter, however, is less efficient (it creates an extra object and in some cases copies the character data).
With this in mind, the first version should be preferred.
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npm: disable postinstall script for package
...ch options? This is not described in 'npm help install', 'npm help config' and 'npm help scripts'.
– farwayer
May 6 '14 at 23:55
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How to correct indentation in IntelliJ
...ents, is there any way for auto-indent for comments. I want to format code and comments of the same way that eclipse does.
– dtrejogo
Jul 29 '14 at 19:45
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How do you use an identity file with rsync?
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You may want to use ssh-agent and ssh-add to load the key into memory. ssh will try identities from ssh-agent automatically if it can find them. Commands would be
eval $(ssh-agent) # Create agent and environment variables
ssh-add ~/.ssh/1234-identity
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TypeScript: Creating an empty typed container array
... In the vast majority of cases the mentioned downsides would be negligible and readability is the most important factor.
*: Fun fact; at the time of writing the performance difference was 60% in Chrome, while in Firefox there was no measurable performance difference.
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TemplateDoesNotExist - Django Error
I'm using Django Rest Framework. and I keep getting an error
5 Answers
5
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