Create recursion.js

Author: imranhsayed

src/recursion.js

@@ -0,0 +1,26 @@
+/**
+ * Recursively calls itself to get the nested param ids.
+ *
+ * @param {Object} checkbox Checkbox.
+ * @param {Array} allParamIds Used to build the ids array, by constantly pushing an id into it.
+ *
+ * @return {Array} allParamIds All param ids.
+ */
+const getAllParamIds = ( checkbox = {}, allParamIds = [] ) => {
+	// Push the checkbox value(id) in allParamIds.
+	allParamIds.push( checkbox.value );
+
+	/**
+	 * If child checkboxes exist, loop through each one of them,
+	 * and recursively call getAllParamIds() to push ids from children.
+	 */
+	const childCheckboxes = checkbox?.children ?? {};
+	if ( Object.keys( childCheckboxes ).length ) {
+		Object.keys( childCheckboxes ).forEach( ( key ) => {
+			getAllParamIds( childCheckboxes[ key ], allParamIds );
+		} );
+	}
+
+	return allParamIds;
+};
+