Exercise:

Create a function with 2 parameters (myVar1 and myVar2,in that order), that are both strings.

Specify that myVar2 should be optional:

function myFunc(
w3exercise_input_no_0
: 
w3exercise_input_no_1
, 
w3exercise_input_no_2
: 
w3exercise_input_no_3
) {
  return(myVar1 + (myVar2 || ""));
}