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What does it mean to hydrate an object?
...omain data ("real" data), and then populating it with domain data (such as from a database, from the network, or from a file system).
From Erick Robertson's comments on this answer:
deserialization == instantiation + hydration
If you don't need to worry about blistering performance, and you a...
What is the difference between Modal and Push segue in Storyboards?
...eep stack. As long as you are taking care of objects you might be passing from one VC to another, the runtime will take care of the navigation stack. See the image for a visual indication:
A modal Segue is just one VC presenting another VC modally. The VCs don't have to be part of a navigation ...
How to exclude certain directories/files from git grep search
...ould also use something like :(top) (short form: :/) to include everything from the top of the repo. But then you'd probably also want to adjust your exclude pathspec to start from the top as well: :/!*.java (otherwise it would only exclude *.java files from under your current directory).
There's a...
Extract substring in Bash
...lues” substitution. So ${a: -12:5} yields the 5 characters 12 characters from the end, and ${a: -12:-5} the 7 characters between end-12 and end-5.
– JB.
Dec 30 '19 at 17:21
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Downloading all maven dependencies to a directory NOT in repository?
... with all the dependencies, including transitive.
Adding Gustavo's answer from below: To download the dependency sources, you can use
mvn dependency:copy-dependencies -Dclassifier=sources
(via Apache Maven Dependency Plugin doc).
...
Instance variables vs. class variables in Python
...(a little bit) faster (one less level of "lookup" due to the "inheritance" from class to instance), and there are no downsides to weigh against this small advantage.
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How do Trigonometric functions work?
...ar the evaluation point; the error generally zooms upwards as you get away from it. And if you have a function with any noncontinuous derivative (e.g. square waves, triangle waves, and their integrals), a Taylor series will give you the wrong answer.
The best "easy" solution, when using a polynomia...
How do I obtain the frequencies of each value in an FFT?
...l input signal (imaginary parts all zero) the second half of the FFT (bins from N / 2 + 1 to N - 1) contain no useful additional information (they have complex conjugate symmetry with the first N / 2 - 1 bins). The last useful bin (for practical aplications) is at N / 2 - 1, which corresponds to 220...
How to capitalize the first letter of a String in Java?
I am using Java to get a String input from the user. I am trying to make the first letter of this input capitalized.
55 ...
Python 2.7: Print to File
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If you want to use the print function in Python 2, you have to import from __future__:
from __future__ import print_function
But you can have the same effect without using the function, too:
print >>f1, 'This is a test'
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