An expando is an custom property attached to a document object.
An expando property is an attribute of a DOM element which is not part of the specification or IDL. Some legacy expandos, such as onclick, are natively mapped to an internal event handler for backward compatibility with the DOM level 0 model.
What are expando objects in javascripts?
For what purpose we need this ? Any complete example will be appreciated
I found 1 article here Javascript: The red-headed stepchild of web development
Have been seeing the term "Expando" used recently with Dart. Sounds interesting. The API did not provide much of a clue to me.
An example or two could be most helpful!
(Not sure if this is related, but I am most anxious for a way to add methods…
I'm trying to put together a way of marking up various components in HTML that get parsed by a jQuery script and created when the page loads.
For example, at the moment I can put the following in to my page..
I'm developing code using jQuery and need to store data associated with certain DOM elements. There are a bunch of other questions about how to store arbitrary data with an html element, but I'm more interested in why I would pick one option over…
When I try to databind an ASP.NET GridView to an IEnumerable using an ObjectDataSource, I get the following exception.
System.Web.HttpException (0x80004005): DataBinding: 'System.Dynamic.ExpandoObject' does not contain a property…
I am using Dapper to fetch a 2 column resultset into a dictionary.
I noticed that intellisense shows me a .ToDictionary() when I hover over the resultset but I cannot get it to work since dapper uses dynamic…
I have written a nifty function that will accept a system.object, reflect on its properties and serialize the object into a JSON string. It looks like this:
public class JSONSerializer
{
public string Serialize(object obj)
Now, I want to be…
Regarding to jQuery utility function jQuery.data() the online documentation says:
"The jQuery.data() method allows us to
attach data of any type to DOM
elements in a way that is safe from
circular references and therefore from
memory leaks.…
Underneath the hood JQuery uses a map of "UUIDs" (just a counter it maintains as jQuery.uuid) to work around the well-known memory leak issues browsers have when you attach a property to a tag in the DOM from Javascript. In lieu of doing so, JQuery…
What is a good way to copy a google app engine entity (in python) to a dictionary object? I'm using db.Expando objects. All properties are expando properties.
Thanks!
I have a quite common design problem: I need to implement a history log (audit trail) for records in Google App Engine. The history log has to be structured, i.e I cannot join all changes into some free-form text and store in string field.
I've…
I encountered this in both Groovy 1.8.6 and 2.0.0.
So these scenarios all work as expected:
def ay = { one, two=[:] -> [one, two] }
def be = { one, two, three=[:] -> [one,two,three] }
def ayprime = ay.curry('PRIME')
def beprime =…
I added a custom user field in Liferay, and set a value on a specific user.
How can I access this value programmatically?
If I try this, I always get null:
String customAttr =…
BACKGROUND
We've got some links on our site that have formats that look like:
http://oursite.com/books/c_sharp_in_depth_12345.
To handle this, we use a simple property called Url:
public class Book
{
public string Url { get; set;}
}
Basically,…
