can you please help me resolve the below issue.

```
"${getFormattedMonthString(months)} ${getFormattedDayString(days)}, till now"

```

for example above string output is ---

```
1 Month 2 days, till now

```

But if getFormattedDayString(days) returns empty string, The output will be --

```
1 Month , till now

```

As you can see there will extra space after Month. Can you please suggest right way to use string interpolation here, so i can get rid of extra space.