Method prepend

src/main/java/org/htmlunit/javascript/host/dom/Node.java:1082–1101

Inserts a set of Node objects or string objects before the first child of the Element. String objects are inserted as equivalent Text nodes. @param context the context @param thisObj this object @param args the arguments @param function the function

(final Context context, final Scriptable thisObj, final Object[] args,
            final Function function)

     * @param function the function
     */
    protected static void prepend(final Context context, final Scriptable thisObj, final Object[] args,
            final Function function) {
        if (!(thisObj instanceof Node thisNode)) {
            throw JavaScriptEngine.typeError("Illegal invocation");
        }

        final DomNode thisDomNode = thisNode.getDomNodeOrDie();
        final DomNode firstChild = thisDomNode.getFirstChild();

        for (final Object arg : args) {
            final Node node = toNodeOrTextNode(thisNode, arg);
            final DomNode newNode = node.getDomNodeOrDie();
            if (firstChild == null) {
                thisDomNode.appendChild(newNode);
            }
            else {
                firstChild.insertBefore(newNode);
            }
        }
    }

    /**
     * Replaces the existing children of a Node with a specified new set of children.