Javascript toString() can connect all elements of an array and return as a string. This function toString() uses commas as separators while adding all the elements.
If you want to specify your own delimiter other than commas then you can use array join function
toString with number
We can convert number to string by using toString().
<script>
var my_var = 13;
document.write(my_var.toString()); // output is 13
document.write(my_var.toString(2)); // output is 1101
document.write(my_var.toString(8)); // output is 15
document.write(my_var.toString(16)); // output is d
</script>