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How do I check how many options there are in a dropdown menu?
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This assumes your <select> list has an ID of mySelectList.
http://api.jquery.com/length/
http://api.jquery.com/children/
http://api.jquery.com/child-selector/
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Calculate distance between two points in google maps V3
...clude:
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false&v=3&libraries=geometry"></script>
in your head section.
The call will be:
google.maps.geometry.spherical.computeDistanceBetween (latLngA, latLngB);
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How does the paste image from clipboard functionality work in Gmail and Google Chrome 12+?
...ime experimenting with this. It seems to sort of follow the new Clipboard API spec. You can define a "paste" event handler and look at event.clipboardData.items, and call getAsFile() on them to get a Blob. Once you have a Blob, you can use FileReader on it to see what's in it. This is how you ca...
What is scope/named_scope in rails?
...scopes can be very powerful tools to easy your work.
Check out this link: API Description
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Playing .mp3 and .wav in Java?
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you can play .wav only with java API:
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.Clip;
code:
AudioInputStream audioIn = AudioSystem.getAudioInputStream(MyClazz.class.getResource("music....
Byte order mark screws up file reading in Java
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This should be in core Java API
– Denis Kniazhev
Dec 7 '12 at 16:42
7
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What's so bad about Template Haskell?
...but a lot of the time you have to do manual AST grafting and plumbing. The API is big and unwieldy, there's always a lot of cases you don't care about but still need to dispatch, and the cases you do care about tend to be present in multiple similar but not identical forms (data vs. newtype, record-...
When is “i += x” different from “i = i + x” in Python?
...lls the __add__ method1 or the __radd__ method in a few cases2.
From an API perspective, __iadd__ is supposed to be used for modifying mutable objects in place (returning the object which was mutated) whereas __add__ should return a new instance of something. For immutable objects, both methods ...
How to find the JVM version from a program?
...cgi" Undocumented
java.specification.name "Java Platform API Specification" "Java Platform API Specification" "Java Platform API Specification" Java Runtime Environment specification name
java.specification.vendor "Oracle Corporation" ...
dismissModalViewControllerAnimated deprecated
...nil];
The word modal has been removed; As it has been for the presenting API call:
[self presentViewController:vc animated:NO completion:nil];
The reasons were discussed in the 2012 WWDC Session 236 - The Evolution of View Controllers on iOS Video. Essentially, view controllers presented by thi...