feat: add new file

frontend/node_modules/dom-helpers/esm/isInput.js

@@ -0,0 +1,10 @@
+var regExpInputs = /^(?:input|select|textarea|button)$/i;
+/**
+ * Checks if a given element is an input (input, select, textarea or button).
+ * 
+ * @param node the element to check
+ */
+
+export default function isInput(node) {
+  return node ? regExpInputs.test(node.nodeName) : false;
+}