Modify subprocess command for MacOS.

Author: Tien Nguyen

main.py

@@ -145,14 +145,14 @@ def _is_executable(path):
     return os.path.isfile(path) and os.access(path, os.X_OK)
 
 def _get_npm_tsc_version():
-    if os.name != 'nt' and _is_executable("/usr/local/bin/tsc"):
-        cmd = ["/usr/local/bin/tsc", "-v"]
+    if os.name != 'nt' and _is_executable("/usr/local/bin/tsc"): # Default location on MacOS
+        cmd = [get_node_path(), "/usr/local/bin/tsc", "-v"]
     else:
         cmd = ["tsc", "-v"]
     return _execute_cmd_and_parse_version_from_output(cmd)
 
 def _execute_cmd_and_parse_version_from_output(cmd):
-    if os.name != 'nt':
+    if os.name != 'nt': # Linux/MacOS
         cmd = "'" + "' '".join(cmd) + "'"
     output = subprocess.check_output(cmd, shell=True).decode('UTF-8')