client/src/utils/squareId.js

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