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How to test an Android Library Project
...tructions are for building a new project group from scratch. If you have already built parts of the project group, then you may have to modify your projects so that they connect in the same way.)
Create a new Android Library project by checking the "Is Library" checkbox during creation. (for examp...
Determine the data types of a data frame's columns
I'm using R and have loaded data into a dataframe using read.csv() . How do I determine the data type of each column in the data frame?
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What does addChildViewController actually do?
...y, you need to ensure that View Controller B is getting the system events (read UIViewControllerDelegate callbacks). 'addChildViewController' hooks this up for you, to save you the effort of passing everything on manually.
– Sam Clewlow
Jun 26 '13 at 11:21
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What is a loop invariant?
I'm reading "Introduction to Algorithm" by CLRS. In chapter 2, the authors mention "loop invariants". What is a loop invariant?
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Specifically, what's dangerous about casting the result of malloc?
Now before people start marking this a dup, I've read all the following, none of which provide the answer I'm looking for:
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Choose Git merge strategy for specific files (“ours”, “mine”, “theirs”)
...flicted. If you do git checkout --theirs example.txt, it will just blindly read the whole file at theirs revision, and the non-conflicted part of the diff will be lost.
– jakub.g
Mar 14 '18 at 8:50
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JSON: why are forward slashes escaped?
...r ignored escapes (like \z) not allowed in JSON?
The key for this was reading
http://www.cs.tut.fi/~jkorpela/www/revsol.html, followed by
http://www.w3.org/TR/html4/appendix/notes.html#h-B.3.2. The feature of
the slash escape allows JSON to be embedded in HTML (as SGML) and XML.
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Samples of Scala and Java code where Scala code looks simpler/has fewer lines?
...Bush</lastname>
</employee>
</company>
You have to read this file and print the firstName and lastName fields of all the employees.
Java: [ taken from here ]
import java.io.File;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
impo...
What do the return values of node.js process.memoryUsage() stand for?
...ects will come from (think of malloc in C, or new in JavaScript).
You can read more about the heap at Wikipedia.
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Why do you not use C for your web apps?
...ever. That means you pay more.
Add all of that to the fact that single-threaded computational speed just isn't that important on the web. If you need more scalability, most organizations can economically just throw more cores at the problem and be fine. This is not true for everyone, of course. ...