Merge pull request #55 in LFOR/fhirpath.js from feature/LF-2677/hasVa…

…lue to master

* commit 'cf206d61b1f9e6690130478485c1825a73edbe58':
  Changes as per review
  Added list of supported additional functions to README.md
  Version info
  type adjustments
  check node type and default checking for hasValue with tests
  Add tests and modify hasValue according to insights
  implement hasValue method

CHANGELOG.md

@@ -3,6 +3,10 @@
 This log documents significant changes for each release.  This project follows
 [Semantic Versioning](http://semver.org/).
 
+## [3.6.0] - 2023-07-11
+### Added
+- hasValue() function.
+
 ## [3.5.0] - 2023-05-04
 ### Added
 - Add `split` and `join` functions

README.md

@@ -247,6 +247,10 @@ Completed sections:
 - 8   (Lexical Elements) - handled by ANTLR parser
 - 9   (Environment Variables)
 
+Supported additional functions from FHIR:
+- extension(url : string) : collection
+- hasValue() : Boolean
+
 ## Development Notes
 
 This section is for people doing development on this package (as opposed to

bin/fhirpath

@@ -16,10 +16,8 @@ options.parse(process.argv);
 // this cli util is part of public interface of fhirpath
 // it can be extended with understading urls and files
 // TODO: introduce subcommands to inspect, eval fhirpath etc
-
 const expression =  options.expression;
 const base =  options.basePath;
-
 if (!expression)
   options.help();
 else {