Function strftime

strftime(date: Date, format: string): string
Format date using strftime format string. See strftime format reference for supported format strings.

Example:
```
// get current date time as year-month-date, e.g. 2026-01-03
let s = strftime(new Date(), "%Y-%m-%d")
```
Parameters
- date: Date
  Date object to format.
- format: string
  strftime format string.
Returns string