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Cannot use ref or out parameter in lambda expressions
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Lambdas have the appearance of changing the lifetime of variables that they capture. For instance the following lambda expression causes the parameter p1 to live longer than the current method frame as its value can be accessed after the method frame is no longer on th...
C++ templates Turing-complete?
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aand now we have concepts lite
– nurettin
Oct 23 '13 at 6:29
1
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Golang production web application configuration
...han HAProxy and capable of doing more).
HAProxy is very easy to configure if you read its documentation (HTML version). My whole haproxy.cfg file for one of my Go projects follows, in case you need a starting pont.
global
log 127.0.0.1 local0
maxconn 10000
user ...
Prepend a level to a pandas MultiIndex
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It took me a while to realize that if you have more than one key for FirstLevel as in ['Foo', 'Bar'] the first argument will also need to have the corresponding length, i.e., [df] * len(['Foo', 'Bar'])!
– mrclng
Dec 13 '1...
Java - No enclosing instance of type Foo is accessible
...ch (by definition) is associated with a particular instance of Hello (even if it never uses or refers to it), which means it's an error to say new Thing(); without having a particular Hello instance in scope.
If you declare it as a static class instead, then it's a "nested" class, which doesn't ne...
NSObject +load and +initialize - What do they do?
...able file, the runtime sends the load message very early in the process's lifetime. For classes that are in a shared (dynamically-loaded) library, the runtime sends the load message just after the shared library is loaded into the process's address space.
Furthermore, the runtime only sends load t...
Java 8 Streams: multiple filters vs. complex condition
...aryStatistics{count=100, sum=10320, min=82, average=103.200000, max=127}
now the code:
enum Gender {
FEMALE,
MALE
}
static class User {
Gender gender;
int age;
public User(Gender gender, int age){
this.gender = gender;
this.age = age;
}
public Gender...
What does passport.session() middleware do?
...hilst the other answers make some good points I thought that some more specific detail could be provided.
app.use(passport.session());
is equivalent to
app.use(passport.authenticate('session'));
Where 'session' refers to the following strategy that is bundled with passportJS.
https://github....
How to generate the JPA entity Metamodel?
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It would be awesome if someone also knows the steps for setting this up in Eclipse (I assume it's as simple as setting up an annotation processor, but you never know)
Yes it is. Here are the implementations and instructions for the various JPA...
How to specify the default error page in web.xml?
I am using <error-page> element in web.xml to specify the friendly error page when user encounters a certain error such as error with code of 404:
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