In Javascript you add properties to an object dynamically for example:
var car = {colour: "blue"};
car.reg = "XYXABC00D";
Is there a special buzzword for this?
Thanks.
-
2Are you just looking for a single word that means "dynamically adding a property to an object"?Peter Olson– Peter Olson2012-03-16 21:37:35 +00:00Commented Mar 16, 2012 at 21:37
-
@Pter yes, the question is that simpledublintech– dublintech2012-03-16 21:50:04 +00:00Commented Mar 16, 2012 at 21:50
Add a comment
|
2 Answers
Your buzzword might be called the expando.
Well, in javascript, any object is an expando object. What it means is, as the article covers, that whenever you try to access a property it will automatically be created.
In practice the name "expando" is only used when a dynamic property added to a DOM node, which made "funny" things in ancient Internet Explorer versions.
4 Comments
Peter Olson
I'm not sure what you mean by "In practice it is only used when a dynamic property is added to a DOM node". I dynamically add keys to objects quite frequently...
biziclop
Sorry, I meant that the expression "expando" is generally used in DOM context, especially when IE memory leaks are discussed.
dublintech
What's the word to cover the programming technique when there is no DOM?
biziclop
What's wrong with "I added a
date property to object o"? :)Since objects in javascript are associative arrays, adding a dynamic property is simply mapping a key/value pair. So perhaps the technical term you're looking for is probably related to assigning/mapping (terms that are related to associative arrays instead of the dynamic object).
Comments
