Function boa::builtins::array::to_string

pub fn to_string(
    this: &Value, 
    _args: &[Value], 
    _ctx: &mut Interpreter
) -> ResultValue

Array.prototype.toString ( separator )

The toString function is intentionally generic; it does not require that its this value be an Array object. Therefore it can be transferred to other kinds of objects for use as a method. https://tc39.es/ecma262/#sec-array.prototype.tostring