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How to list branches that contain a given commit?
... Note: When your commit sha is the most recent commit on the master/foo branch (HEAD)... you can't do an A..B commit range, just dont use a range like so:: git log HEAD --oneline -1 > 82c12a9 (HEAD, origin/remote-branch-name, origin/master, origin/dev, origin/HEAD, master, dev) commit mess...
Node.js check if file exists
...ter a minute search try this :
var path = require('path');
path.exists('foo.txt', function(exists) {
if (exists) {
// do something
}
});
// or
if (path.existsSync('foo.txt')) {
// do something
}
For Node.js v0.12.x and higher
Both path.exists and fs.exists have been de...
Groovy: what's the purpose of “def” in “def x = 0”?
...l.* automatically
// but not java.nio.*
import java.nio.channels.*
class Foo {
public void bar() {
FileChannel channel = new FileInputStream('Test.groovy').getChannel()
println channel.toString()
}
}
new Foo().bar()
e.g. But here I can just 'wing it' as long as everythin...
Only using @JsonIgnore during serialization, but not deserialization
...oreProperties(allowSetters = true, value = {"bar"})
class Pojo{
String foo;
String bar;
}
Both foo and bar are populated in the object, but only foo is written into a response body.
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IN vs OR in the SQL WHERE Clause
... you want to know the performance difference between the following:
WHERE foo IN ('a', 'b', 'c')
WHERE foo = 'a' OR foo = 'b' OR foo = 'c'
According to the manual for MySQL if the values are constant IN sorts the list and then uses a binary search. I would imagine that OR evaluates them one by on...
Is there something like Annotation Inheritance in java?
...value = {ElementType.TYPE})
@Vehicle
public @interface Car {
}
@Car
class Foo {
}
You can then check if a class is annotated with Vehicle using Spring's AnnotationUtils:
Vehicle vehicleAnnotation = AnnotationUtils.findAnnotation (Foo.class, Vehicle.class);
boolean isAnnotated = vehicleAnnotation...
How to compute the similarity between two text documents?
...swered Jan 17 '12 at 15:54
Fred FooFred Foo
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...
C++ catching all exceptions
...h(...) is meant to be used in conjunction with throw; basically:
try{
foo = new Foo;
bar = new Bar;
}
catch(...) // will catch all possible errors thrown.
{
delete foo;
delete bar;
throw; // throw the same error again to be handled somewhere else
}
This is the pr...
ORA-00979 not a group by expression
...le to understand why this happens: Imagine you have a database like this:
FOO BAR
0 A
0 B
and you run SELECT * FROM table GROUP BY foo. This means the database must return a single row as result with the first column 0 to fulfill the GROUP BY but there are now two values of bar to chose from....
How do I check if a directory exists? “is_dir”, “file_exists” or both?
...name is taken, you should check both. There might be a regular file named 'foo', which would prevent you from creating a directory name 'foo'.
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