Gave example for lazy-loaded views.

README.md

@@ -8,7 +8,7 @@ Extract SwiftUI views from ViewBuilder content.
 Follow the instructions at [Adding Package Dependencies to Your App][1] to find out how to install the Swift package. Use the link of this GitHub repo as the URL (`https://github.com/GeorgeElsham/ViewExtractor`).
 
 
-## Example
+## Example #1
 
 Here is an example which creates a `VStack` with `Divider()`s in between.
 
@@ -58,4 +58,45 @@ DividedVStack {
 <img src="https://user-images.githubusercontent.com/40073010/115965850-f43c5d80-a522-11eb-8113-1f73d07fade0.png" width="25%">
 
 
+## Example #2
+
+Here is an example which creates a `VStack` of views, for every multiple of 2. The views are loaded lazily, so they aren't all computed at once which would waste resources if half of them aren't used.
+
+### View code
+
+```swift
+struct IntervalVStack: View {
+    private let extractor: ViewExtractor
+
+    init<Content: View & DynamicViewContentProvider>(content: ForEachContent<Content>) {
+        extractor = ViewExtractor(content: content)
+    }
+
+    var body: some View {
+        VStack(spacing: 0) {
+            ForEach(extractor.forEachRange!) { index in
+                if index.isMultiple(of: 2) {
+                    extractor.uncheckedView(at: index)
+                }
+            }
+        }
+    }
+}
+```
+
+### Usage
+
+```swift
+IntervalVStack {
+    ForEach(0 ..< 10) { index in
+        Text("Index: \(index)")
+    }
+}
+```
+
+### Result
+
+<img src="https://user-images.githubusercontent.com/40073010/127054749-e5d27295-f179-41bd-9517-3b2d0eb4b970.png" width="25%">
+
+
   [1]: https://developer.apple.com/documentation/swift_packages/adding_package_dependencies_to_your_app#3234996