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# isDateInYesterday(_:)

Indicates whether the given date is in “yesterday.”

```
func isDateInYesterday(_ date: Date) -> Bool
```

## Parameters

`date`

The date for which to perform the calculation.

## Return Value

<doc://com.apple.documentation/documentation/Swift/true> if the given date is in “yesterday,” otherwise <doc://com.apple.documentation/documentation/Swift/false>.

## Discussion

---

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