Github
Twittercan.size
Return the number of items in the collection.
@@can.size()
The @@can.size symbol points to a function that returns the number of
items in the collection.
var obj = {
[canSymbol.for('can.size')]: function(){
return Object.keys(this).length;
}
};
obj.foo = true;
obj.bar = true;
obj[canSymbol.for('can.size')]() //-> 2
Returns
{Number}:
The number of items in the collection.