Why I'm getting this "Range Violation" error?

[rempas]

On Friday, 9 July 2021 at 07:54:44 UTC, zjh wrote:
> On Friday, 9 July 2021 at 07:21:06 UTC, rempas wrote:
>> I have the following code:
>>
>
> `prompt[i]!='{'`,here,i=len.so `array overflow`

Thanks a lot. It seems I have a lot to learn. Have an amazing day!