# Basic Javascript Function concatenation \[SOLVED\]

**URL:** <https://discourse.nodered.org/t/basic-javascript-function-concatenation-solved/95090>\
**Category:** General\
**Tags:** function-node\
**Created:** [3 February 2025 14:41 UTC](https://discourse.nodered.org/t/basic-javascript-function-concatenation-solved/95090 "2025-02-03T14:41:29Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![vongomben](https://avatars.discourse-cdn.com/v4/letter/v/a4c791/32.png) [@vongomben](https://discourse.nodered.org/u/vongomben)\
**Post date:** [3 February 2025 14:41 UTC](https://discourse.nodered.org/t/basic-javascript-function-concatenation-solved/95090/1 "2025-02-03T14:41:29Z")

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Hi.  
I'm struggling in understand what's wrong in this concatenation.  
I'm failin in concatenate this object[1], using this function[2].  
Nothing is coming out.

Thanks in advance for your answer.

[This is the code](https://gist.githubusercontent.com/vongomben/ba4998ca5dbb6930e661d68ae0528d9b/raw/b9f4c21550444278393737a7b88502ec1b40725a/function.json)

[1]  
{"specie":"siamese","animal":"cat","age":5,"name":"Pippi","vax":true,"vaxDate":3}

[2]

```auto
let string1 = 'This ';
let animal = msg.payload.animal;
let string2 = ' is called ';
let name = msg.payload.name;

//let age = Number(msg.payload.age);
//let data = Number(msg.payload.vaxDate);
//let anni = age - data;

let final = string1;// + animal + string2 + name;

msg.payload.text = final;

```

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<div class="post-metadata">

**Author:** ![knolleary](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/knolleary/32/3_2.png) [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Post date:** [3 February 2025 14:49 UTC](https://discourse.nodered.org/t/basic-javascript-function-concatenation-solved/95090/2 "2025-02-03T14:49:53Z")

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Hi @vongomben

You need to add `return msg` to the end of the code to pass the message on.

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<div class="post-metadata">

**Author:** ![vongomben](https://avatars.discourse-cdn.com/v4/letter/v/a4c791/32.png) [@vongomben](https://discourse.nodered.org/u/vongomben)\
**Post date:** [3 February 2025 14:59 UTC](https://discourse.nodered.org/t/basic-javascript-function-concatenation-solved/95090/3 "2025-02-03T14:59:55Z")

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> [@knolleary](#):
>
> return msg

oops.  
Thanks.  
That was monday afternoon probably.

ciao!

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [17 February 2025 15:00 UTC](https://discourse.nodered.org/t/basic-javascript-function-concatenation-solved/95090/4 "2025-02-17T15:00:16Z")

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