Javascript 2d array Help

I need to input 10 integers between 1-10 and type square in a way that each frame contains one digit.

for example input 3 integers should be like this: 11111 12221 12321 12221 11111

Here is my code:

     var intNum = prompt("insert number"){
         while (intNum <= 0 || intNum > 10){
             document.write("Please choose number between 1-10");
         }
         var unuM = intNum * 2 -1;
         var matrix[][] = [unuM][unuM];
         for ( var i - 0; i < intNum; i++){
             for (int j = 0; j < unuM; j++){
                 if (matrix[j][i] == 0){
                     matrix[j][i] = i + 1;
                 }
                 if (matrix[unuM - 1 - j][unuM - 1 -i] == 0){
                     matrix[unuM - 1 - j][unuM - 1 - i] = i + 1;
                 }
                 if (matrix[i][j] == 0) {
                     matrix[i][j] = i + 1;
                 }
                 if (matrix[unuM - 1 - i][unuM - 1 - j] == 0){
                     matrix[unuM - 1 -i][unuM - 1 -j] = i +1;
                 }
     
             }
     
         }
         for (var i = 0; i < unuM; i++){
             for ( var j - 0; j < unuM; j++){
                 document.write(matrix[i][j]);
             }
         }
     }

Can someone detect my error?

thanks!