try changing logic regarding use of quotation marks

nvm.sh

@@ -232,8 +232,8 @@ nvm_get_node_from_pkg_json() {
         fi
         if [ "$open_brackets" -ne 0 ] && [ "$open_brackets" -eq "$closed_brackets" ]; then
           command printf "%s" "$engines_object" \
+            | command grep -o '"node":"[0-9a-zA-Z.<>=*~^xXv\-]\+"' \
             | command tr -d '"' \
-            | command grep -o 'node:[0-9a-zA-Z.<>=*~^xXv\-]\+' \
             | command awk -F: '{ print $2 }'
             # TODO add error handling logic
           return 0