Add an example to confirm (String|Node)* is usable as expected

Author: japgolly

example/src/main/scala/example/Example.scala

@@ -18,16 +18,23 @@ object Alert {
 object NodeAppendChild {
  @JSExport
  def main(div: html.Div) = {
- val child = dom.document
- .createElement("div")
-
- child.textContent =
- "Hi from Scala-js-dom"
-
+ val child = dom.document.createElement("div")
+ child.textContent = "Hi from Scala-js-dom"
  div.appendChild(child)
  }
 }
 
+@JSExportTopLevel("ExampleNodeReplaceChildren")
+object NodeReplaceChildren {
+ @JSExport
+ def main(div: html.Div): Unit = {
+ dom.document.replaceChildren()
+ dom.document.replaceChildren("")
+ dom.document.replaceChildren(div)
+ dom.document.replaceChildren("", div)
+ }
+}
+
 @JSExportTopLevel("ExampleElementStyle")
 object ElementStyle {
  @JSExport
@@ -123,7 +130,7 @@ object XMLHttpRequest{
  @JSExport
  def main(pre: html.Pre) = {
  val xhr = new dom.XMLHttpRequest()
- xhr.open("GET", 
+ xhr.open("GET",
  "https://www.boredapi.com/api/activity"
  )
  xhr.onload = { (e: dom.Event) =>