im trying to display some code into a text area, i got it to work i just dont know how to get it to display my values JAVASCRIPT

Question

// i have this right now, im trying to figure out how i could print the values into a text area

onEvent("factorsof2", "click", function( ) { ``` var num = calculate();

function calculate(num) {
   ```
   var half = Math.floor(num / 2),
    ```
  str = '1',
    ```
  i, j;

num % 2 === 0 ? (i = 2, j = 1) : (i = 3, j = 2);
```
for (i; i <= half; i += j) {

        num % i === 0 ? str += ',' + i : false;
    }

str += ',' + num; 

}
  setText("text_area3", "Your factors are: " + calculate(num));

});