Queries the number of child items in the container that we are iterating over. This is the total number of items -- not the number of items remaining.
This function might be useful for preallocation of arrays.
the number of children in the container
2.24
See Implementation
Queries the number of child items in the container that we are iterating over. This is the total number of items -- not the number of items remaining.
This function might be useful for preallocation of arrays.