<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <body> <div id="app"></div> <script> // modell let board = "73541 286"; // view updateView(); function updateView(){ createSquareHtml(1) + createSquareHtml(2) } function createSquareHtml(index1, index2){ return /*HTML*/ ` <div onclick="swap(${index})">${board.charAt(index)}</div> `; } // controller function swap(){ let blankIndex = board.indexOf(' '); let selectedNumber = board.charAt(index); board = board.replace(' ', selectedNumber); updateView(); }; function areNeighbours(){ }; </script> </body> </html>