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# addConstraints(_:)

Adds multiple constraints on the layout of the receiving view or its subviews.

```
func addConstraints(_ constraints: [NSLayoutConstraint])
```

## Parameters

`constraints`

An array of constraints to be added to the view. All constraints may only reference the view itself or its subviews.

## Discussion

All constraints must involve only views that are within scope of the receiving view. Specifically, any views involved must be either the receiving view itself, or a subview of the receiving view. Constraints that are added to a view are said to be held by that view. The coordinate system used when evaluating each constraint is the coordinate system of the view that holds the constraint.

---

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