From 88278a1fb47f93edb40e974ab4eaf6923169f4a4 Mon Sep 17 00:00:00 2001
From: David Burles <dburles@gmail.com>
Date: Mon, 18 Mar 2019 18:13:15 +1100
Subject: [PATCH 1/2] fix edge case with rendering children as number 0

---
 src/vhtml.js  |  2 +-
 test/vhtml.js | 11 +++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/vhtml.js b/src/vhtml.js
index d42d9c9..3fb7b95 100644
--- a/src/vhtml.js
+++ b/src/vhtml.js
@@ -36,7 +36,7 @@ export default function h(name, attrs) {
 
 		while (stack.length) {
 			let child = stack.pop();
-			if (child) {
+			if (child !== undefined) {
 				if (child.pop) {
 					for (let i=child.length; i--; ) stack.push(child[i]);
 				}
diff --git a/test/vhtml.js b/test/vhtml.js
index 606d762..74fcf5b 100644
--- a/test/vhtml.js
+++ b/test/vhtml.js
@@ -165,4 +165,15 @@ describe('vhtml', () => {
 			'<div class="my-class" for="id"></div>'
 		);
 	});
+
+	it('should render a child of 0', () => {
+		function Child ({ children }) {
+			return <span>{children}</span>;
+		}
+		expect(
+			<div><Child>{0}</Child></div>
+		).to.equal(
+			'<div><span>0</span></div>'
+		);
+	});
 });

From 015b1b9e214ad3d893d78349c4b40eff1ae6d48d Mon Sep 17 00:00:00 2001
From: David Burles <dburles@gmail.com>
Date: Mon, 18 Mar 2019 18:50:51 +1100
Subject: [PATCH 2/2] don't attempt to render null children

---
 src/vhtml.js  |  2 +-
 test/vhtml.js | 16 ++++++++++++++++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/src/vhtml.js b/src/vhtml.js
index 3fb7b95..b625916 100644
--- a/src/vhtml.js
+++ b/src/vhtml.js
@@ -36,7 +36,7 @@ export default function h(name, attrs) {
 
 		while (stack.length) {
 			let child = stack.pop();
-			if (child !== undefined) {
+			if (child !== undefined && child !== null) {
 				if (child.pop) {
 					for (let i=child.length; i--; ) stack.push(child[i]);
 				}
diff --git a/test/vhtml.js b/test/vhtml.js
index 74fcf5b..a479838 100644
--- a/test/vhtml.js
+++ b/test/vhtml.js
@@ -176,4 +176,20 @@ describe('vhtml', () => {
 			'<div><span>0</span></div>'
 		);
 	});
+
+	it('should not attempt to render a child of null or undefined', () => {
+		function Child ({ children }) {
+			return <span>{children}</span>;
+		}
+		expect(
+			<div><Child>{null}</Child></div>
+		).to.equal(
+			'<div><span></span></div>'
+		);
+		expect(
+			<div><Child>{undefined}</Child></div>
+		).to.equal(
+			'<div><span></span></div>'
+		);
+	});
 });