Add pure and sequence

1 files changed, 24 insertions, 0 deletions

diff --git a/src/example.ts b/src/example.ts
index 5ff3fba..229d3a0 100644
--- a/src/example.ts
+++ b/src/example.ts
@@ -161,6 +161,30 @@ const doubleMapChild =
     })
   )
 
+const seq =
+  withState(0, a =>
+    withState(0, b =>
+      withState(0, c => [
+        counterComponent({
+          value: a,
+          onSub: () => a.update(n => n - 1),
+          onAdd: () => a.update(n => n + 1)
+        }),
+        counterComponent({
+          value: b,
+          onSub: () => b.update(n => n - 1),
+          onAdd: () => b.update(n => n + 1)
+        }),
+        counterComponent({
+          value: c,
+          onSub: () => c.update(n => n - 1),
+          onAdd: () => c.update(n => n + 1)
+        }),
+        sequence2([a, b, c]).map(xs => xs.reduce((a, b) => a + b, 0))
+      ])
+    )
+  )
+
 const view = h('main',
   h('h1', 'Rx'),
   chrono