Merge branch 'control_errors'

Author: RafaelGB

docs/examples/footerFormulas/obtainAverage.js

@@ -1,5 +1,7 @@
 /**
  * Obtains the average of the values in the column
+ * 
+ * Formula: ${db.js.obtainAverage(colValues)}
  * @param {*} obtainAverage 
  * @returns 
  */

docs/examples/rowFormulas/isSectionExist.js

@@ -0,0 +1,14 @@
+/**
+ * Determine if a section exists in a note by checking the headings.
+ * 
+ * Formula: ${db.js.isSectionExist(row,"my section")}
+ * @param {*} row 
+ * @param {*} sectionString 
+ * @returns 
+ */
+function isSectionExist(row,sectionString){
+  const headings = app.metadataCache.getFileCache(row.__note__.getFile()).headings;
+  return headings.some(h => h.heading===sectionString);
+}
+
+module.exports = isSectionExist