expando – Tarik Billa

What is the Dart “Expando” feature about, what does it do?

December 15, 2023 by Tarik

Just to clarify the difference between expando and maps: as reported in the groups, expando has weak references. This means that a key can be garbage collected even if it’s still present in the expando (as long as there are no other references to it). For all other intents and purposes it’s a map.

Javascript expando objects

May 3, 2023 by Tarik

Well, in javascript, any object is an expando object. What it means is, as the article covers, that whenever you try to access a property1 it will automatically be created. var myObj = {}; // completely empty object myObj.myProp = ‘value’; The moment you assign myProp a value, the property myProp is dynamically created, eventhough … Read more