Global variable changing content when setting sn instance of the global variable content

#1

0down votefavorite

If you look at the following example you could see that I'm setting a global value on startup. After that, If you click inject module you'll see that I set to 22 the tag_id attribute of the object on a new value. I don't understand why the global object changes the tag_id value to 22 if I'm setting the value in another variable. I don't want that the global value change.

[{"id":"a1dc09e7.208b48","type":"function","z":"81ac975c.542c88","name":"","func":"var o = global.get(\"machine\");\nnode.warn(o[1]);\no[1].tag_id = 22;\n\n","outputs":1,"noerr":0,"x":350,"y":320,"wires":[[]]},{"id":"4cca337d.f22bfc","type":"inject","z":"81ac975c.542c88","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":"5","x":140,"y":320,"wires":[["a1dc09e7.208b48"]]},{"id":"fd1f90c5.86b85","type":"inject","z":"81ac975c.542c88","name":"Startup","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":true,"x":140,"y":220,"wires":[["950e20e9.dd2d3"]]},{"id":"950e20e9.dd2d3","type":"function","z":"81ac975c.542c88","name":"","func":"msg ={\n\t\"1\": {\n\t\t\"timestamp\": \"\",\n\t\t\"tag\": \"\",\n\t\t\"tag_id\": 0,\n\t\t\"value\": 0,\n\t\t\"units\": \"\"\n\t}\n}\n\nglobal.set(\"machine\",msg);\n\n//return msg;   ","outputs":1,"noerr":0,"x":350,"y":220,"wires":[[]]}]
#2

Hi - the #development:feature-requests category isn't really appropriate for this question, so I've moved to #faqs

I've already answered this on StackOverflow - https://stackoverflow.com/a/52723298/2117239