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Can't find @Nullable inside javax.annotation.*
I want use @Nullable annotation to eliminate NullPointerExceptions .
I found some tutorials on the net, I noticed that this annotation comes from the package javax.annotation.Nullable ;
but when I import it a compilation error is generated: cannot find symbol
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How to use WHERE IN with Doctrine 2
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In researching this issue, I found something that will be important to anyone running into this same issue and looking for a solution.
From the original post, the following line of code:
$qb->add('where', $qb->expr()->in('r.winner', array('?1')));
Wrapping the named ...
Some built-in to pad a list in python
...ge a in place
new_a = a + [''] * (N - len(a))
you can always create a subclass of list and call the method whatever you please
class MyList(list):
def ljust(self, n, fillvalue=''):
return self + [fillvalue] * (n - len(self))
a = MyList(['1'])
b = a.ljust(5, '')
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How to convert string to char array in C++?
I would like to convert string to char array but not char* . I know how to convert string to char* (by using malloc or the way I posted it in my code) - but that's not what I want. I simply want to convert string to char[size] array. Is it possible?
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Maven package/install without test (skip tests)
I am trying to package my project. But, it automatically runs the tests previous do performing the packaging. The tests insert some content in the database. This is not what I want, I need to avoid running tests while package the application. Anybody knows how run the package with out test?
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TypeScript: casting HTMLElement
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TypeScript uses '<>' to surround casts, so the above becomes:
var script = <HTMLScriptElement>document.getElementsByName("script")[0];
However, unfortunately you cannot do:
var script = (<HTMLScriptElement[]>document.getElementsByName(id))[0];
You get the...
What is “rvalue reference for *this”?
...s a just a "marketing statement". The type of *this never changes, see the bottom of this post. It's way easier to understand it with this wording though.
Next, the following code chooses the function to be called based on the ref-qualifier of the "implicit object parameter" of the function†:
// t...
Get elements by attribute when querySelectorAll is not available without using libraries?
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You could write a function that runs getElementsByTagName('*'), and returns only those elements with a "data-foo" attribute:
function getAllElementsWithAttribute(attribute)
{
var matchingElements = [];
var allElements = document.getElementsByTagName('*');
for (var i...
Automatic counter in Ruby for each?
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As people have said, you can use
each_with_index
but if you want indices with an iterator different to "each" (for example, if you want to map with an index or something like that) you can concatenate enumerators with the each_with_index method, or simply use with_index:
b...
What's “this” in JavaScript onclick?
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In the case you are asking about, this represents the HTML DOM element.
So it would be the <a> element that was clicked on.
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