// Get the identifier of a HTML square from its numeric coordinates o.x,o.y.
-function getSquareId(o)
+export function getSquareId(o)
{
// NOTE: a separator is required to allow any size of board
return "sq-" + o.x + "-" + o.y;
}
// Inverse function
-function getSquareFromId(id)
+export function getSquareFromId(id)
{
const idParts = id.split('-');
return [parseInt(idParts[1]), parseInt(idParts[2])];