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Get index of selected option with jQuery
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The first methods seem to work in the browsers that I tested, but the option tags doesn't really correspond to actual elements in all browsers, so the result may vary.
Just use the selectedIndex property of the DOM element:
alert($("#dropDownMenuKategorie")[0].selectedIndex);
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How do I generate random numbers in Dart?
... = 0; i < 10; i++) {
print(rng.nextInt(100));
}
}
This code was tested with the Dart VM and dart2js, as of the time of this writing.
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MongoDb query condition on comparing 2 fields
... constant and filter. This way you avoid javascript execution. Below is my test in python:
import pymongo
from random import randrange
docs = [{'Grade1': randrange(10), 'Grade2': randrange(10)} for __ in range(100000)]
coll = pymongo.MongoClient().test_db.grades
coll.insert_many(docs)
Using agg...
jQuery post() with serialize and extra data
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$.ajax({
type: 'POST',
url: 'test.php',
data:$("#Test-form").serialize(),
dataType:'json',
beforeSend:function(xhr, settings){
settings.data += '&moreinfo=MoreData';
},
success:function(data){
// json respo...
Number of days in particular month of particular year?
...h.of(1999, 2);
int daysInMonth = yearMonthObject.lengthOfMonth(); //28
Test: try a month in a leap year:
yearMonthObject = YearMonth.of(2000, 2);
daysInMonth = yearMonthObject.lengthOfMonth(); //29
Java 7 and earlier
Create a calendar, set year and month and use getActualMaximum
int iYear ...
What does the `forall` keyword in Haskell/GHC do?
...ust contain two of the same type? Let's tell it they don't have to be"
-- test.hs
liftTup :: (x -> f x) -> (a, b) -> (f a, f b)
liftTup liftFunc (t, v) = (liftFunc t, liftFunc v)
ghci> :l test.hs
Couldnt match expected type 'x' against inferred type 'b'
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Hmm. so here GHC d...
SQL Server: SELECT only the rows with MAX(DATE)
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select OrderNo,PartCode,Quantity
from dbo.Test t1
WHERE EXISTS(SELECT 1
FROM dbo.Test t2
WHERE t2.OrderNo = t1.OrderNo
AND t2.PartCode = t1.PartCode
GROUP BY t2.OrderNo,
t2.PartCode
HAVING t1.DateEntere...
How to access class constants in Twig?
...PERSON') %}
See documentation for the constant function and the constant test.
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Disabling browser print options (headers, footers, margins) from page?
...lns="http://www.w3.org/1999/xhtml">
<head>
<title>Print Test</title>
<style type="text/css" media="print">
@page
{
size: auto; /* auto is the initial value */
margin: 0mm; /* this affects the margin in the printer settings */
}
...
Android ACTION_IMAGE_CAPTURE Intent
...ute further to the discussion and help out newcomers I've created a sample/test app that shows several different strategies for photo capture implementation. Contributions of other implementations are definitely encouraged to add to the discussion.
https://github.com/deepwinter/AndroidCameraTester...