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Why does X[Y] join of data.tables not allow a full outer join, or a left join?
This is a bit of a philosophical question about data.table join syntax. I am finding more and more uses for data.tables, but still learning...
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Java: Detect duplicates in ArrayList?
...lt; 6) { //has duplicate
}
}
I'm not 100% sure of that for syntax, so it might be safer to write it as
for (int i = 0; i < 6; i++) {
Set set = new HashSet<Block>();
for (int j = 0; j < 6; j++)
set.add(table[i][j]);
...
Set.add returns a boolean false if the item being...
REST / SOAP endpoints for a WCF service
I have a WCF service and I want to expose it as both a RESTfull service and as a SOAP service.
Anyone has done something like this before?
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ActiveRecord: List columns in table from console
...des all the information for a table through ActiveRecord. Crucially for me it was the only and easiest way to gain confidence in what my primary key really was at the database level.
– nibbex
Mar 11 '15 at 17:30
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setTimeout / clearTimeout problems
I try to make a page to go to the startpage after eg. 10sec of inactivity (user not clicking anywhere). I use jQuery for the rest but the set/clear in my test function are pure javascript.
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When do I need to use AtomicBoolean in Java?
...ultiple threads need to check and change the boolean. For example:
if (!initialized) {
initialize();
initialized = true;
}
This is not thread-safe. You can fix it by using AtomicBoolean:
if (atomicInitialized.compareAndSet(false, true)) {
initialize();
}
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Can we pass parameters to a view in SQL?
...ETURN
SELECT * FROM emp WHERE emp_id=@pintEno;
This allows you to use it as a normal view, with:
SELECT * FROM v_emp(10)
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Bootstrap: Position of dropdown menu relative to navbar item
...t we're trying to achieve:
The classes that need to be applied changed with the release of Bootstrap 3.1.0 and again with the release of Bootstrap 4. If one of the below solutions doesn't seem to be working double check the version number of Bootstrap that you're importing and try a different one...
How to allow only numeric (0-9) in HTML inputbox using jQuery?
...pdated answer. Comments below refer to an old version which messed around with keycodes.
jQuery
Try it yourself on JSFiddle.
There is no native jQuery implementation for this, but you can filter the input values of a text <input> with the following inputFilter plugin (supports Copy+Paste, D...
How to flatten an ExpandoObject returned via JsonResult in asp.net mvc?
... special JSONConverter that works only for ExpandoObject and then register it in an instance of JavaScriptSerializer. This way you could serialize arrays of expando,combinations of expando objects and ... until you find another kind of object that is not getting serialized correctly("the way u want"...