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Get next / previous element using JavaScript?
...e a collection.
var divs = document.getElementsByTagName("div");
//divs now contain each and every div element on the page
var selectionDiv = document.getElementById("MySecondDiv");
So basically with selectionDiv iterate through the collection to find its index, and then obviously -1 = previous...
Is List a subclass of List? Why are Java generics not implicitly polymorphic?
...th a List<Animal> - you can add any animal to it... including a cat. Now, can you logically add a cat to a litter of puppies? Absolutely not.
// Illegal code - because otherwise life would be Bad
List<Dog> dogs = new ArrayList<Dog>(); // ArrayList implements List
List<Animal>...
HtmlString vs. MvcHtmlString
...s a compatibility shim added to MVC 2 to support both .NET 3.5 and .NET 4. Now that MVC 3 is .NET 4 only, it's a fairly trivial subclass of HtmlString presumably for MVC 2->3 for source compatibility.
If you're ever going to drop back to MVC 2 it might make sense to use IHtmlString or var for va...
What does it mean to hydrate an object?
...
I have changed my mind, and now I agree that this answer is more accurate than my old answer. I have since edited my answer (since it was accepted, and I want it to be accurate). Now hopefully it now reflects the difference between deserialization and h...
MemoryCache does not obey memory limits in configuration
... this._idx ^= 1;
this._cacheSizeSampleTimes[this._idx] = DateTime.UtcNow;
this._cacheSizeSamples[this._idx] = ref2.ApproximateSize;
IMemoryCacheManager manager = s_memoryCacheManager;
if (manager != null)
{
manager.UpdateCacheSize(this._cacheSizeSamples[this._idx], this._...
Recommended method for escaping HTML in Java
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The above example is broken. Use escapeHtml4() method now.
– stackoverflowuser2010
Jun 24 '14 at 17:47
3
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How to get the difference between two arrays in JavaScript?
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May I know what will happen when var a1 = ['a', 'b']; and var a2 = ['a', 'b', 'c', 'd', 'b'];, it will return wrong answer, i.e. ['c', 'd', 'b'] instead of ['c', 'd'].
– skbly7
Oct 11 '15 at 23...
How can I check whether a radio button is selected with JavaScript?
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Anyone know if it is possible to chain selectors like this? input[name=gender][type=radio] or input[name=gender,type=radio] just for extra validation?
– Ty_
Nov 17 '15 at 15:26
...
How to plot two histograms together in R?
...rm(100000, 6, 2))
cukes <- data.frame(length = rnorm(50000, 7, 2.5))
# Now, combine your two dataframes into one.
# First make a new column in each that will be
# a variable to identify where they came from later.
carrots$veg <- 'carrot'
cukes$veg <- 'cuke'
# and combine into your new ...
How to thoroughly purge and reinstall postgresql on ubuntu? [closed]
...ake sure PostgreSQL isn't running. ps -C postgres should show no results.
Now run:
apt-get --purge remove postgresql\*
to remove everything PostgreSQL from your system. Just purging the postgres package isn't enough since it's just an empty meta-package.
Once all PostgreSQL packages have been r...