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Whether a variable is undefined [duplicate]
...ed-undefined-null-in-javascript.html
Depends on how specific you want the test to be. You could maybe get away with
if(page_name){ string += "&page_name=" + page_name; }
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How do I put hint in a asp:textbox
...e like this:
<asp:TextBox ID="TextBox1" runat="server" placeholder="hi test"></asp:TextBox>
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Check if all checkboxes are selected
...ilarly you can use $someCollection.is(':checked').length for other related tests. Also see stackoverflow.com/questions/16576560 for notes about further optimization.
– Jake
2 days ago
...
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar
...iewcontroller and one managed by the searchviewcontroller and then I could test to see which is active and do the right thing. The documentation was helpful too:
http://developer.apple.com/library/ios/#documentation/uikit/reference/UISearchDisplayController_Class/Reference/Reference.html
Here's w...
Calling setCompoundDrawables() doesn't display the Compound Drawable
...
Use This (I tested). It works good
Drawable image = context.getResources().getDrawable( R.drawable.ic_action );
int h = image.getIntrinsicHeight();
int w = image.getIntrinsicWidth();
image.setBounds( 0, 0, w, h );
button.setCompound...
How to get current location in Android [duplicate]
...sion between GPS and NETWORK based location is really big. Yesterday I was testing in it, while moving on the bus, the GPS gave an accuracy of 3-5 meters and the NETWORK like 1Km. So get in a bus/car and and see the difference between those two.
– Axxiss
Jul 11...
How to fix Git error: object file is empty?
...van-N61Jq:~/workspace/mcmc-chapter$ git add tex/sept2012_code/example-code-testing.R
nathanvan@nathanvan-N61Jq:~/workspace/mcmc-chapter$ git commit -a -m "adding in the example code"
[master 385c023] adding in the example code
1 file changed, 331 insertions(+)
create mode 100644 tex/sept2012_code/...
Why do I need 'b' to encode a string with Base64?
...are only two or 4 bits in the last chunk.
Example:
>>> data = b'test'
>>> for byte in data:
... print(format(byte, '08b'), end=" ")
...
01110100 01100101 01110011 01110100
>>>
If you interpret that binary data as a single integer, then this is how you would convert...
Download multiple files as a zip-file using php
...nd stream it to the client. Something like:
$files = array('readme.txt', 'test.html', 'image.gif');
$zipname = 'file.zip';
$zip = new ZipArchive;
$zip->open($zipname, ZipArchive::CREATE);
foreach ($files as $file) {
$zip->addFile($file);
}
$zip->close();
and to stream it:
header('Cont...
What is the real overhead of try/catch in C#?
...!_user.Rights.Contains(rightName))
throw new Exception();
}
When the test database got fuller with test data, this lead to a very visible slowdown while openening new forms etc.
So I refactored it to the following, which - according to later quick 'n dirty measurements - is about 2 orders of ...