As Of Block
Where Is It?
The As Of block is found in the Events drawer of the Blawx toolbox.
What Does It Do?
The As Of block is used for stating and querying whether a statement holds as of a particular time. It accepts a datetime input, and a statement.
The As Of block is a statement block and can be stacked with other statement blocks.
It is generally more effective to use the "From" block for setting out events - the points in time at which the truth of certain statements changes. The As Of block is best used to check whether one of those statements is true at a given time.