Delete a property from a thing.
While almost all functions on things are also available on Type instances, this one is not. This is because a Type instance has a fixed set of properties and so you are not allowed to delete one of them on a single instance. Use mod_type() instead, to delete the property from all instances if this is what you want.
This function generates a change.
thing.del(property)
| Argument | Type | Description |
|---|---|---|
| property | str (required) | Name of the property to delete. |
Returns the removed value if successful. A lookup_err() is returned if the property does not exist.
In versions before v0.9.3 the return value of .del(..) used to be nil when successful.
This code shows some return values for del():
.x = 'create and delete this prop';
.del('x');
Return value in JSON format
"create and delete this prop"