[stdlib] Explicit visibility and return types: DOM API

libraries/stdlib/wasm/js/src/kotlinx/dom/Classes.kt

@@ -9,7 +9,7 @@ import org.w3c.dom.*
 
 /** Returns true if the element has the given CSS class style in its 'class' attribute */
 @SinceKotlin("1.4")
-fun Element.hasClass(cssClass: String): Boolean = className.matches("""(^|.*\s+)$cssClass($|\s+.*)""".toRegex())
+public fun Element.hasClass(cssClass: String): Boolean = className.matches("""(^|.*\s+)$cssClass($|\s+.*)""".toRegex())
 
 /**
  * Adds CSS class to element. Has no effect if all specified classes are already in class attribute of the element
@@ -17,7 +17,7 @@ fun Element.hasClass(cssClass: String): Boolean = className.matches("""(^|.*\s+)
  * @return true if at least one class has been added
  */
 @SinceKotlin("1.4")
-fun Element.addClass(vararg cssClasses: String): Boolean {
+public fun Element.addClass(vararg cssClasses: String): Boolean {
     val missingClasses = cssClasses.filterNot { hasClass(it) }
     if (missingClasses.isNotEmpty()) {
         val presentClasses = className.trim()
@@ -40,7 +40,7 @@ fun Element.addClass(vararg cssClasses: String): Boolean {
  * @return true if at least one class has been removed
  */
 @SinceKotlin("1.4")
-fun Element.removeClass(vararg cssClasses: String): Boolean {
+public fun Element.removeClass(vararg cssClasses: String): Boolean {
     if (cssClasses.any { hasClass(it) }) {
         val toBeRemoved = cssClasses.toSet()
         className = className.trim().split("\\s+".toRegex()).filter { it !in toBeRemoved }.joinToString(" ")

libraries/stdlib/wasm/js/src/kotlinx/dom/ItemArrayLike.kt

@@ -6,8 +6,8 @@
 package org.w3c.dom
 
 public external interface ItemArrayLike<out T : JsAny?> : JsAny {
-    val length: Int
-    fun item(index: Int): T?
+    public val length: Int
+    public fun item(index: Int): T?
 }
 
 public fun <T : JsAny?> ItemArrayLike<T>.asList(): List<T> = object : AbstractList<T>() {

libraries/stdlib/wasm/js/src/kotlinx/dom/Mutations.kt

@@ -21,7 +21,7 @@ public fun Node.clear() {
  * @return this element
  */
 @SinceKotlin("1.4")
-fun Element.appendText(text: String): Element {
+public fun Element.appendText(text: String): Element {
     appendChild(ownerDocument!!.createTextNode(text))
     return this
 }