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How to avoid having class data shared among instances?
... def __init__(self):
self.list = []
Declaring the variables inside the class declaration makes them "class" members and not instance members. Declaring them inside the __init__ method makes sure that a new instance of the members is created alongside every new instance of the object, whi...
Preview layout with merge root tag in Intellij IDEA/Android Studio
...
There is a new parentTag tools attribute (added in Android Studio 2.2) that you can use to specify the layout type for a merge tag, which will make the layout render correctly in the layout editor preview.
So using your example:
<merge xmlns:android="http://schemas.android.c...
performing HTTP requests with cURL (using PROXY)
...n I run this command: curl -x, --proxy 122.72.2.200:80 mysite.com/test.php?id=1
– user873286
Feb 27 '12 at 22:52
63
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What's the difference between MyISAM and InnoDB? [duplicate]
... and MyISAM, the first step is in determining if you need the features provided by InnoDB. If not, then MyISAM is up for consideration.
A more detailed discussion of differences is rather impractical (in this forum) absent a more detailed discussion of the problem space... how the application will u...
Error inflating class fragment
...
As hdemirchian said, make sure to use:
import android.support.v4.app.Fragment;
And also make sure that the Activity that is using the fragment(s) extends FragmentActivity instead of the regular Activity,
import android.support.v4.app.Fra...
jquery disable form submit on enter
...
If keyCode is not caught, catch which:
$('#formid').on('keyup keypress', function(e) {
var keyCode = e.keyCode || e.which;
if (keyCode === 13) {
e.preventDefault();
return false;
}
});
EDIT: missed it, it's better to use keyup instead of keypress
EDIT 2:...
Are there any side effects of returning from inside a using() statement?
Returning a method value from inside a using statement that gets a DataContext seems to always work fine , like this:
5 ...
What are the Ruby Gotchas a newbie should be warned about? [closed]
...s simple as I had expected. More precisely, the "rule of least-surprise" did not seem very respected to me (of course this is quite subjective). For example:
...
Is there an “exists” function for jQuery?
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@abhirathore2006 If you use an id selector and the element doesn't exist then length is 0 and doesn't throw exceptions.
– Robert
Jun 29 '17 at 20:35
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How to Create Multiple Where Clause Query Using Laravel Eloquent?
...where clauses
$query=DB::table('users')
->whereRaw("users.id BETWEEN 1003 AND 1004")
->whereNotIn('users.id', [1005,1006,1007])
->whereIn('users.id', [1008,1009,1010]);
$query->where(function($query2) use ($value)
{
$query2->where('user_t...