isEmpty()
#
Returns true if the cell found at (row, col) is empty and false otherwise. Only cells defined as null are considered empty.
Example #
The isEmpty() method is exemplified in visitQuadrille(quadrille, fx, cells).
Syntax #
isEmpty(row, col)
Parameters #
| param | description |
|---|---|
| row | Number: row number of the cell to be read [0..height] |
| col | Number: col number of the cell to be read [0..width] |