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...t would have the fatal flaw of not matching anything if the $sample stage didn't select any matching documents.
– JohnnyHK
Apr 19 at 0:21
...
Why does viewWillAppear not get called when an app comes back from the background?
...factoring you can do to achieve the same effect might be as follows:
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
[self doMyLayoutStuff:self];
}
- (void)doMyLayoutStuff:(id)sender {
// stuff
}
Then also you trigger doMyLayoutStuff from the appropriate noti...
What is the purpose of Flask's context stacks?
...n "Application Dispatching" example:
from werkzeug.wsgi import DispatcherMiddleware
from frontend_app import application as frontend
from backend_app import application as backend
application = DispatcherMiddleware(frontend, {
'/backend': backend
})
Notice that there are two completely d...
Find out if ListView is scrolled to the bottom?
...tion stuff.
yourListView.setOnScrollListener(this);
// ... ... ...
@Override
public void onScroll(AbsListView lw, final int firstVisibleItem,
final int visibleItemCount, final int totalItemCount)
{
switch(lw.getId())
{
case R.id.your_list_id:
// Make you...
SQL, Postgres OIDs, What are they and why are they useful?
...
OIDs basically give you a built-in id for every row, contained in a system column (as opposed to a user-space column). That's handy for tables where you don't have a primary key, have duplicate rows, etc. For example, if you...
Exception thrown in NSOrderedSet generated accessors
...
The bug ID is 10114310. It was reported on 13-Sep-2011 but today (15-Jan-2012) it is still "open". It is incredible, considering the number of people who have the same problem.
– Dev
Jan 15 '12 ...
Can I change the viewport meta tag in mobile safari on the fly?
...t.querySelector("meta[name=viewport]");
viewport.setAttribute('content', 'width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0');
Just change the parts you need and Mobile Safari will respect the new settings.
Update:
If you don't already have the meta viewport tag in the so...
What's the best way of structuring data on firebase?
...e will probably set you in the right state of mind, so here goes:
/users/uid
/users/uid/email
/users/uid/messages
/users/uid/widgets
Now, since we're in a hierarchical structure, if I want to iterate users' email addresses, I do something like this:
// I could also use on('child_added') here to ...
How to use jQuery in chrome extension?
..."],
"run_at": "document_end"
}
]
This is what I did.
Also, if I recall correctly, the background scripts are executed in a background window that you can open via chrome://extensions.
share
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How do I append text to a file?
... sudo prepended. I recently found out this also works with nano etc (by accidentally trying to nano nano auth...)
– Sandra
May 11 '18 at 23:23
...