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Getting a list of values from a list of dicts
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Get key values from list of dictionaries in python?
Get key values from list of dictionaries in python?
Ex:
data =
[{'obj1':[{'cpu_percentage':'15%','ram':3,'memory_percentage':'66%'}]},
{'obj2': [{'cpu_percentage':'0','ram':4,'memory...
Can I safely delete contents of Xcode Derived data folder?
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Yes, you can delete all files from DerivedData sub-folder (Not DerivedData Folder) directly.
That will not affect your project work. Contents of DerivedData folder is generated during the build time and you can delete them if you want. It's not an issue...
What does the `forall` keyword in Haskell/GHC do?
... a -> b.
A confusing point: you may hear that when you omit the forall from a type it is actually still implicitly there. (from Norman's answer: "normally these languages omit the forall from polymorphic types"). This claim is correct, but it refers to the other uses of forall, and not to the Sc...
Maven Could not resolve dependencies, artifacts could not be resolved
This is supposed to be a working project from my friend. He demonstrated the project right in front of me, and then I copied the project, imported it as an existing maven project (I'm using m2eclipse plugin).
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How to move a git repository into another directory and make that directory a git repository?
...at exists already (else create it)
$ cp -r gitrepo1 newrepo
# remove .git from old repo to delete all history and anything git from it
$ rm -rf gitrepo1/.git
Note that the copy is quite expensive if the repository is large and with a long history. You can avoid it easily too:
# move the director...
What is the point of a private pure virtual function?
...e derived classes. Methods of derived classes can't call virtual functions from the base class, but they can provide their own implementation for them. According to Herb Sutter, having public non-virtual interface in the base class and a private implementation that can be customized in the derived c...
Remove trailing newline from the elements of a string list
...strip() as mentioned above, or use the strip function which you can import from the strings module.
– Cito
Nov 3 '11 at 10:18
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JavaScript closures vs. anonymous functions
...nterested in identifying a subset of these functions which are interesting from a theoretical point of view. Henceforth any reference to the word closure will refer to this subset of functions unless otherwise stated.
A simple explanation for closures:
Take a function. Let's call it F.
List all t...
Are +0 and -0 the same?
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JavaScript uses IEEE 754 standard to represent numbers. From Wikipedia:
Signed zero is zero with an associated sign. In ordinary arithmetic, −0 = +0 = 0. However, in computing, some number representations allow for the existence of two zeros, often denoted by −0 (negative ...
Linking to an external URL in Javadoc?
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Taken from the javadoc spec
@see <a href="URL#value">label</a> :
Adds a link as defined by URL#value. The URL#value is a relative or absolute URL. The Javadoc tool distinguishes this from other cases by looking for a l...