在addEventListener方法之外调用函数

Question

I have a JavaScript code that creates a 10x10 table, and when I click on a cell an addEventListener method prints the x,y cordinates and execute a function like below:

create_grid(name){
  var dim = 10;
  var my_field = document.createElement("table");

  for (var i = 0; i < dim; i++) {
    var row = document.createElement("tr");
    for (var j = 0; j < dim; j++) {
      var td = document.createElement("td");
      td.setAttribute("id", i + "," + j);

      td.addEventListener("click", function () {
        var obj = {
          x: this.id.split(",")[0],
          y: this.id.split(",")[1]
        };

        console.log("cell pressed: " + obj.x + "  " + obj.y);
      });
      row.appendChild(td);
    }
    my_field.appendChild(row);
  }
  document.getElementById(name).appendChild(my_field);
}

I have another function like:

myFunction(x,y){

    // do something
}

I would like to call myFunction inside the addEventListener of create_grid function:

td.addEventListener("click", function () {
        var obj = {
          x: this.id.split(",")[0],
          y: this.id.split(",")[1]
        };

        console.log("cell pressed: " + obj.x + "  " + obj.y);


        myFunction(obj.x, obj.y); // THIS DOESN'T WORK!
});

The structure of the typescript file il this:

export class gameComponent {

      create_grid(name){
          // code
      }

      myFunction(x,y){
         // code 
      }

}

Answer 1

Try

 function myFunction(x,y){ console.log(x+'-'+y); } function create_grid(name){ var dim = 10, s=''; for(let i=0; i<dim; i++) { s+='<tr>' for(let j=0; j<dim; j++) s+=`<td onclick="myFunction(${[i,j]})">x</td>`; s+='</tr>' } this[name].innerHTML= '<table>' + s + '</table>'; } create_grid('xxx'); 

 td {cursor: pointer} 

 Click on 'x': <div id='xxx'></div>