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Why is it necessary to set the prototype constructor?
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It's not always necessary, but it does have its uses. Suppose we wanted to make a copy method on the base Person class. Like this:
// define the Person Class
function Person(name) {
this.name = name;
}
Person.prototype.copy = function() {
// r...
How do I do a not equal in Django queryset filtering?
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Your query appears to have a double negative, you want to exclude all rows where x is not 5, so in other words you want to include all rows where x IS 5. I believe this will do the trick.
results = Model.objects.filter(x=5).exclude(a=true)
To answer ...
How can I reliably determine the type of a variable that is declared using var at design time?
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I can describe for you how we do that efficiently in the "real" C# IDE.
The first thing we do is run a pass which analyzes only the "top level" stuff in the source code. We skip all the method bodies. That allows us to quickly build up a database of inf...
How do I remove files saying “old mode 100755 new mode 100644” from unstaged changes in Git?
...=rw-r--r--) - the old mode included the +x (executable) flag, the new mode doesn't.
This msysgit issue's replies suggests setting core.filemode to false in order to get rid of the issue:
git config core.filemode false
sha...
What does the brk() system call do?
...you posted, the "break"—the address manipulated by brk and sbrk—is the dotted line at the top of the heap.
The documentation you've read describes this as the end of the "data segment" because in traditional (pre-shared-libraries, pre-mmap) Unix the data segment was continuous with the heap; ...
What Git branching models work for you?
...ch, only a "current dev" branch, because the truth is: the developer often doesn't know what exactly his/her branch will produce: one feature, several (because it ended up being too complex a feature), none (because not ready in time for release), another feature (because the original one had "morph...
Do declared properties require a corresponding instance variable?
Do properties in Objective-C 2.0 require a corresponding instance variable to be declared? For example, I'm used to doing something like this:
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How do I replace a git submodule with another repo?
How do I replace a git submodule with a different git repo?
6 Answers
6
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How do I push amended commit to the remote Git repository?
...ut then I noticed I forgot to organize my imports in the source code. So I do the amend command to replace the previous commit:
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How do I get the size of a java.sql.ResultSet?
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Do a SELECT COUNT(*) FROM ... query instead.
OR
int size =0;
if (rs != null)
{
rs.last(); // moves cursor to the last row
size = rs.getRow(); // get row id
}
In either of the case, you won't have to loop over the...