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# init(expressionType:)

Creates the expression with the specified expression type.

```
init(expressionType type: NSExpression.ExpressionType)
```

## Parameters

`type`

The type of the new expression, as defined by [`NSExpression.ExpressionType`](/documentation/Foundation/NSExpression/ExpressionType-swift.enum).

## Return Value

An initialized `NSExpression` object of the type `type`.

## Discussion

This method is the designated initializer for `NSExpression`.

## See Also

  [Predicate Programming Guide](https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/Predicates/AdditionalChapters/Introduction.html#//apple_ref/doc/uid/TP40001789)

[`expressionWithFormat:`](/documentation/Foundation/NSExpression/expressionWithFormat:)

Creates the expression with the specified expression arguments.


---

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