Hi
I’m using 4D 17.4 and I’ve just started to try to wrap my head around object
notation and collections. Here’s a simplified object:
{
item_1:value,
item_2:value,
my_array:[
{
element_1_:value,
element_2:value,
element_3:value
},
{
element_1:value,
element_2:value,
element_3:value
}
]
}
I added the array to the object using OB SET ARRAY as I don’t think there’s a
way to add an array to an object using object notation?
and can access and change the values correctly like this:
$object.item_1 := ”value”
$object.my_array[0].element_1 := ”value”
However, I’m struggling to figure out how to remove an element from the array.
I want to remove the second element from “array” but I can’t see how to do that
– either using object notation or the old school commands.
The only way I can see right now is to extract the array using OB Get Array,
delete the unwanted element and then put the array back inside the object.
I’m also a bit hazy on whether this array is actually now a collection once
it’s been added to the object? I tried using $object.my_array[1].remove() but
just got an error
Sorry for the newbie nature of the question – I’ve been developing in 4D on and
off for about 25 years but haven’t got to grips with object notation or
collections just yet.
TIA
James
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