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What is object slicing?
...nformation - some of it is "sliced" away.
For example,
class A {
int foo;
};
class B : public A {
int bar;
};
So an object of type B has two data members, foo and bar.
Then if you were to write this:
B b;
A a = b;
Then the information in b about member bar is lost in a.
...
Is there any way to post events to Google Analytics via server-side API? [closed]
... file_get_contents($sGaUrl);
}
sendAnalytics('UA-XXXXXXXX-1', 'http://foo.com', '/bar', 'Foo Bar');
Hope that helps!
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...
Converting strings to floats in a DataFrame
...
In [10]: df = DataFrame(dict(A = Series(['1.0','1']), B = Series(['1.0','foo'])))
In [11]: df
Out[11]:
A B
0 1.0 1.0
1 1 foo
In [12]: df.dtypes
Out[12]:
A object
B object
dtype: object
In [13]: df.convert_objects(convert_numeric=True)
Out[13]:
A B
0 1 1
1 1 NaN
...
Matlab: Running an m-file from command-line
...bash
matlab -nodisplay -nojvm -nosplash -nodesktop -r \
"try, run('/foo/bar/my_script.m'), catch, exit(1), end, exit(0);"
echo "matlab exit code: $?"
it prints matlab exit code: 1 if the script throws an exception, matlab exit code: 0 otherwise.
...
Spring JPA @Query with LIKE
... You can just do like :username and then .setParameter("username", "%foo%");
– Matthew Daumen
May 16 '19 at 19:30
...
Is the 'override' keyword just a check for a overridden virtual method?
...an otherwise silent error can be diagnosed:
struct Base
{
virtual int foo() const;
};
struct Derived : Base
{
virtual int foo() // whoops!
{
// ...
}
};
The above code compiles, but is not what you may have meant (note the missing const). If you said instead, virtual int...
JSON Array iteration in Android/Java
...ill make all instances of JSONArray iterable, meaning that the for (Object foo : bar) syntax will now work with it (note that foo has to be an Object, because JSONArrays do not have a declared type). All this works because the JSONArray class is backed by a simple ArrayList, which is already iterabl...
How to watch for array changes?
...;
x.splice(1, 2, "x");
console.log("setting index 2...");
x[2] = "foo";
console.log("setting length to 10...");
x.length = 10;
console.log("updated array: %o", x.slice());
console.log("setting length to 2...");
x.length = 2;
console.log("extracting first element via ...
In a URL, should spaces be encoded using %20 or +? [duplicate]
... theory I think you should have %20 before the ? and + after:
example.com/foo%20bar?foo+bar
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Execute raw SQL using Doctrine 2
...ion();
Create your query and fetchAll:
$result= $conn->query('select foobar from mytable')->fetchAll();
Get the data out of result like this:
$this->appendStringToFile("first row foobar is: " . $result[0]['foobar']);
...