diff --git a/skooma.js b/skooma.js
index 4edcfd7..8e4edd5 100644
--- a/skooma.js
+++ b/skooma.js
@@ -52,7 +52,7 @@ const getCustom = args => args.reduce(
 
 const isElement = object => HTMLElement.prototype.isPrototypeOf(object)
 
-const isReactive = object => !(object instanceof HTMLElement)
+export const isReactive = object => !(object instanceof HTMLElement)
 	&& (object instanceof EventTarget)
 	&& ("value" in object)
 
@@ -63,6 +63,8 @@ const toChild = arg => {
 		return arg
 	} else if (isReactive(arg)) {
 		return reactiveChild(arg)
+	} else {
+		return document.createComment("Placeholder for reactive content")
 	}
 }
 
@@ -98,7 +100,7 @@ const specialAttributes = {
 	},
 	shadowRoot: {
 		set: (element, value) => {
-			parseArgs((element.shadowRoot || element.attachShadow({mode: "open"})), null, value)
+			parseArgs((element.shadowRoot || element.attachShadow({mode: "open"})), value)
 		}
 	}
 }
@@ -145,21 +147,25 @@ const setReactiveAttribute = (element, attribute, reactive, abortController) =>
 	}
 }
 
-const parseArgs = (element, before, ...args) => {
+const parseArgs = (element, ...args) => {
 	if (element.content) element = element.content
 	for (const arg of args) if (arg !== empty) {
-		const child = toChild(arg)
-		if (child)
-			element.insertBefore(child, before)
-		else if (arg === undefined || arg == null)
-			console.warn(`An argument of type ${typeof arg} has been ignored`, element)
-		else if (typeof arg == "function")
-			arg(element)
-		else if ("length" in arg)
-			parseArgs(element, before, ...arg)
-		else
-			for (const key in arg)
-				setAttribute(element, key, arg[key])
+		if (arg instanceof Array) {
+			parseArgs(element, ...arg)
+		} else {
+			const child = toChild(arg)
+			if (child)
+				element.append(child)
+			else if (arg === undefined || arg == null)
+				console.warn(`An argument of type ${typeof arg} has been ignored`, element)
+			else if (typeof arg == "function" && arg.length == 0)
+				parseArgs(element, arg())
+			else if (typeof arg == "function")
+				arg(element)
+			else
+				for (const key in arg)
+					setAttribute(element, key, arg[key])
+		}
 	}
 }
 
@@ -173,7 +179,7 @@ const node = (name, args, options) => {
 		element = document.createElementNS(options.xmlns, name, opts)
 	else
 		element = document.createElement(name, opts)
-	parseArgs(element, null, args)
+	parseArgs(element, args)
 	return element
 }