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How does generic lambda work in C++14?
...w does generic lambda work ( auto keyword as an argument type) in C++14 standard?
3 Answers
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Equivalent VB keyword for 'break'
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In both Visual Basic 6.0 and VB.NET you would use:
Exit For to break from For loop
Wend to break from While loop
Exit Do to break from Do loop
depending on the loop type. See Exit Statements for more details.
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How to Replace dot (.) in a string in Java
...wo backslashes before the dot, one to escape the slash so it gets through, and the other to escape the dot so it becomes literal. Forward slashes and asterisk are treated literal.
str=xpath.replaceAll("\\.", "/*/"); //replaces a literal . with /*/
http://docs.oracle.com/javase/7/docs/ap...
mysql create user if not exists
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In 5.7.6 and above, you should be able to use CREATE USER
CREATE USER IF NOT EXISTS 'user'@'localhost' IDENTIFIED BY 'password';
Note that the 5.7.6 method doesn't actually grant any permissions.
If you aren't using a version wh...
What is the difference between object keys with quotes and without quotes?
...e JSON data exchange format does require double quotes around identifiers (and does not allow single quotes).
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Efficiently checking if arbitrary object is NaN in Python / numpy / pandas?
...lues. As I iterate over the data set, I need to detect such missing values and handle them in special ways.
2 Answers
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int to hex string
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Great! I will add $"0x{id:X4}";
– Andrei Krasutski
Mar 14 at 9:34
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What does a double * (splat) operator do
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Ruby 2.0 introduced keyword arguments, and ** acts like *, but for keyword arguments. It returns a Hash with key / value pairs.
For this code:
def foo(a, *b, **c)
[a, b, c]
end
Here's a demo:
> foo 10
=> [10, [], {}]
> foo 10, 20, 30
=> [10, [20...
How to test if one java class extends another at runtime?
...e will return true if the class/instance is a member of the type hierarchy and are not restrictive to direct superclass/subclass relationships. For example:
// if A.class extends B.class, and B.class extends C.class
C.class.isAssignableFrom(A.class); // evaluates to true
// ...and...
new A() instan...
Add a method breakpoint to all methods of a class in EclipseIDE
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The fastest way is to go to the "Outline" view and select all of the methods you want, right-click and click "Toggle Method Breakpoint"
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