add nextflow d30e48d

nextflow/docs/snippets/branch-with-mapper.nf

@@ -0,0 +1,16 @@
+channel.of(1, 2, 3, 40, 50)
+    .branch { v ->
+        alpha: v < 10
+            return v + 2
+
+        beta: v < 50
+            return v - 2
+
+        other: true
+            return 0
+    }
+    .set { result }
+
+result.alpha.view { v -> "$v is alpha" }
+result.beta.view { v -> "$v is beta" }
+result.other.view { v -> "$v is other" }