# Apples and Bananas but no Fruit
**URL:** https://discourse.nodered.org/t/apples-and-bananas-but-no-fruit/58875
**Category:** General
**Created:** [23 February 2022 11:19 UTC](https://discourse.nodered.org/t/apples-and-bananas-but-no-fruit/58875 "2022-02-23T11:19:23Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@CarloJongen](https://discourse.nodered.org/u/CarloJongen)
#### Post date: [23 February 2022 11:19 UTC](https://discourse.nodered.org/t/apples-and-bananas-but-no-fruit/58875/1 "2022-02-23T11:19:23Z")
So I've made this simple setup.
I inject a Json msg "A" and this results in Global TEST "A". When I inject Json msg "B" I get the Global TEST "B" as result.
But what if I only wanted to change the amount Apples & Bananas without changing the payload "Fruit".
How would one change only one item in the TEST json msg without changing any of the other items? Can this be done directly?
---
### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [23 February 2022 11:38 UTC](https://discourse.nodered.org/t/apples-and-bananas-but-no-fruit/58875/2 "2022-02-23T11:38:11Z")
I don't understand what you mean. Please select those three nodes, Export them, and Paste them here, using the `` button at the top of the forum entry window when pasting. Then your question may make more sense.
---
### Author:  [@CarloJongen](https://discourse.nodered.org/u/CarloJongen)
#### Post date: [23 February 2022 11:42 UTC](https://discourse.nodered.org/t/apples-and-bananas-but-no-fruit/58875/3 "2022-02-23T11:42:36Z")
```auto
[
{
"id": "2cb8209b8102f7f2",
"type": "inject",
"z": "ada58d9a.2eab9",
"name": "{\"payload\":\"fruit\",\"apples\":1,\"bananas\":2}",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "",
"payload": "{\"payload\":\"fruit\",\"apples\":1,\"bananas\":2}",
"payloadType": "json",
"x": 2460,
"y": 1500,
"wires": [
[
"9a6bdd2aa2b28a0d"
]
]
},
{
"id": "9a6bdd2aa2b28a0d",
"type": "function",
"z": "ada58d9a.2eab9",
"name": "Set Payload to Global Set \"TEST\"",
"func": "global.set(\"TEST\",msg.payload);\nreturn msg;",
"outputs": 1,
"noerr": 0,
"initialize": "",
"finalize": "",
"libs": [],
"x": 2840,
"y": 1520,
"wires": [
[]
]
},
{
"id": "11a18762e4b937f5",
"type": "inject",
"z": "ada58d9a.2eab9",
"name": "{\"apples\":4,\"bananas\":5}",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "",
"payload": "{\"apples\":4,\"bananas\":5}",
"payloadType": "json",
"x": 2410,
"y": 1540,
"wires": [
[
"9a6bdd2aa2b28a0d"
]
]
}
]
```
---
### Author:  [@CarloJongen](https://discourse.nodered.org/u/CarloJongen)
#### Post date: [23 February 2022 11:51 UTC](https://discourse.nodered.org/t/apples-and-bananas-but-no-fruit/58875/4 "2022-02-23T11:51:03Z")
I sort of would like to do the same like a Dictionary in Python.
I have several items in a dictionary and I want to change only one item of the dictionary without changing any of the other items.
---
### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [23 February 2022 11:53 UTC](https://discourse.nodered.org/t/apples-and-bananas-but-no-fruit/58875/5 "2022-02-23T11:53:05Z")
This should do what you want I think
```auto
// fetch previous object, default to empty object
let data = global.get("TEST") || {}
//merge old object into new
data = Object.assign(data, msg.payload);
// save it
global.set("TEST",data);
return msg;
```
---
### Author:  [@CarloJongen](https://discourse.nodered.org/u/CarloJongen)
#### Post date: [23 February 2022 12:00 UTC](https://discourse.nodered.org/t/apples-and-bananas-but-no-fruit/58875/6 "2022-02-23T12:00:01Z")
> [@Colin](#):
>
> ```auto
> // fetch previous object, default to empty object
> let data = global.get("TEST") || {}
> //merge old object into new
> data = Object.assign(data, msg.payload);
> // save it
> global.set("TEST",data);
> return msg;
>
> ```
Thanks Colin that is exactly what I needed.
---
### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [9 March 2022 12:00 UTC](https://discourse.nodered.org/t/apples-and-bananas-but-no-fruit/58875/7 "2022-03-09T12:00:43Z")
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