Set subattributes within a list by reference — .setSubAttrInList • reproducible

Sets only a single element within a list attribute.

.setSubAttrInList(object, attr, subAttr, value)

Arguments

object: An arbitrary object
attr: The attribute name (that is a list object) to change
subAttr: The list element name to change
value: The new value

Value

This sets or updates the subAttr element of a list that is located at attr(object, attr), with the value. This, therefore, updates a sub-element of a list attribute and returns that same object with the updated attribute.