public/javascripts/utils/squareId.js

   1 // Get the identifier of a HTML square from its numeric coordinates o.x,o.y.
   2 function getSquareId(o)
   3 {
   4     // NOTE: a separator is required to allow any size of board
   5     return  "sq-" + o.x + "-" + o.y;
   6 }
   7
   8 // Inverse function
   9 function getSquareFromId(id)
  10 {
  11     const idParts = id.split('-');
  12     return [parseInt(idParts[1]), parseInt(idParts[2])];
  13 }