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How can I escape a double quote inside double quotes?
How can I escape double quotes inside a double string in Bash?
8 Answers
8
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Does anyone still use [goto] in C# and if so why? [closed]
...ng whether anyone still uses the "goto" keyword syntax in C# and what possible reasons there are for doing so.
8 Answers
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What does .SD stand for in data.table in R
.SD looks useful but I do not really know what I am doing with it. What does it stand for? Why is there a preceding period (full stop). What is happening when I use it?
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How to return a result (startActivityForResult) from a TabHost Activity?
... look at the Activity class, you will see, that finish() method only sends back the result if there is a mParent property set to null. Otherwise the result is lost.
public void finish() {
if (mParent == null) {
int resultCode;
Intent resultData;
synchronized (this) {
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Better explanation of when to use Imports/Depends
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"Imports" is safer than "Depends" (and also makes a package using it a 'better citizen' with respect to other packages that do use "Depends").
A "Depends" directive attempts to ensure that a function from another package is available by attaching the other package to the main search path (i.e. t...
Can I catch multiple Java exceptions in the same catch clause?
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This has been possible since Java 7. The syntax for a multi-catch block is:
try {
...
} catch (IOException | SQLException ex) {
...
}
Remember, though, that if all the exceptions belong to the same class hierarchy, you can si...
Rotating a point about another point (2D)
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First subtract the pivot point (cx,cy), then rotate it, then add the point again.
Untested:
POINT rotate_point(float cx,float cy,float angle,POINT p)
{
float s = sin(angle);
float c = cos(angle);
// translate point back to o...
Hashing a dictionary?
...ring or representation of the dictionary.
UPDATE: Please see the comments below, why this approach might not produce a stable result.
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Arrow operator (->) usage in C
I am reading a book called "Teach Yourself C in 21 Days" (I have already learned Java and C# so I am moving at a much faster pace). I was reading the chapter on pointers and the -> (arrow) operator came up without explanation. I think that it is used to call members and functions (like the eq...
Multiple columns index when using the declarative ORM extension of sqlalchemy
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those are just Column objects, index=True flag works normally:
class A(Base):
__tablename__ = 'table_A'
id = Column(Integer, primary_key=True)
a = Column(String(32), index=True)
b = Column(String(32), index=True)
if you'd like a ...