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How to use mysql JOIN without ON condition?
...tead of 'ON' as in the query
SELECT * FROM table1 LEFT JOIN table2 USING (id);
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Easy way to prevent Heroku idling?
In the Heroku free apps the dynos seem to keep idling - my app has very low traffic but it's also not really acceptable in my case that my users have to wait 20+ seconds to spin up a new dyno.
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How to use ADB Shell when Multiple Devices are connected? Fails with “error: more than one device an
...vice, for example:
adb -s 7f1c864e shell
See also http://developer.android.com/tools/help/adb.html#directingcommands
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Using .sort with PyMongo
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If it is only one field, it can be .sort("_id", 1)
– Haris Np
Mar 15 '18 at 11:51
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Combining a class selector and an attribute selector with jQuery
... interpreted as the descendant selector.
Your second selector, like you said, looks for elements with either the attribute value, or the class, or both.
The comma is being interpreted as the multiple selector operator — whatever that means (CSS selectors don't have a notion of "operators"; the co...
Get all keys of an NSDictionary as an NSArray
...s and values, here's what you do:
for (NSString *key in dictionary) {
id value = dictionary[key];
NSLog(@"Value: %@ for key: %@", value, key);
}
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Python + Django page redirect
...how to pass the value of parameters to lambda, i.e. url(r'^(?P<location_id>\d+)/$', lambda x: HttpResponseRedirect(reverse('dailyreport_location', args=['%(location_id)', ]))) does not work
– radtek
Jun 12 '14 at 16:51
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How do you beta test an iphone app?
...ll the steps in using itself, while ibetatest was resorting to a very dry video to explain the process.
– DanF
May 7 '11 at 21:39
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moveCamera with CameraUpdateFactory.newLatLngBounds crashes
I'm making use of the new Android Google Maps API .
20 Answers
20
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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...