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Appending an element to the end of a list in Scala
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That's because you shouldn't do it (at least with an immutable list).
If you really really need to append an element to the end of a data structure and this data structure really really needs to be a list and this list really really has to be immutable t...
How to force maven update?
... imported my already working project on another computer and it started to download dependencies.
25 Answers
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What's the best UML diagramming tool? [closed]
...eating a model. Here are the questions that should be answered as each vendor product/solution does some things better than others. Note: The listed answers are my view as the best even if other products support a given feature or need.
Are you modeling or drawing? (Drawing - ArgoUML, free impl...
FormsAuthentication.SignOut() does not log the user out
Smashed my head against this a bit too long. How do I prevent a user from browsing a site's pages after they have been logged out using FormsAuthentication.SignOut? I would expect this to do it:
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Best way to iterate through a Perl array
... you'll find #1 and #4 to be slightly faster because the iteration work is done in C instead of Perl, and no needless copying of the array elements occurs. ($_ is aliased to the element in #1, but #2 and #3 actually copy the scalars from the array.)
#5 might be similar.
In terms memory usage: They'...
Center image horizontally within a div
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I don't think this is a good idea, and also I believe there's some caveats like margin: auto is dependent on the containing element having a designated width value.
– Jared Farrish
Jun 12 ...
Are global variables in PHP considered bad practice? If so, why?
...em configuration, and when I nead to access this variable in a function, I do global $var; .
6 Answers
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PHP foreach change original array values
...t unless you know why you need it and test the results.
I would recommend doing the following:
foreach ($fields as $key => $field) {
if ($field['required'] && strlen($_POST[$field['name']]) <= 0) {
$fields[$key]['value'] = "Some error";
}
}
So basically use $field w...
insert multiple rows via a php array into mysql
...VALUES '.implode(',', $sql));
The advantage of this approach is that you don't copy and re-copy the SQL statement you've so far assembled with each concatenation; instead, PHP does this once in the implode() statement. This is a big win.
If you have lots of columns to put together, and one or mor...
What does it mean: The serializable class does not declare a static final serialVersionUID field? [d
...erstand and remove it. I found already some answers on this question but I do not understand these answers because of an overload with technical terms. Is it possible to explain this issue with simple words?
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