programming-examples/js/Functions/Write a JavaScript function which returns the n rows by n columns identity matrix..js

function matrix(n) {  
  
        var i;  
        var j;  
  
        for (i=0; i < n; i++)  
        {  
          for (j=0; j < n; j++)  
          {  
               if (i === j)  
               {  
                  
                 console.log(' 1 ');  
               }  
                        
               else   
                {  
                 console.log(' 0 ');}  
                }  
             console.log('----------');  
           }  
       }  
matrix(4);