# Change Watt Number in Normal number

**URL:** <https://discourse.nodered.org/t/change-watt-number-in-normal-number/78973>\
**Category:** General\
**Created:** [5 June 2023 18:51 UTC](https://discourse.nodered.org/t/change-watt-number-in-normal-number/78973 "2023-06-05T18:51:02Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![TheJoJo](https://avatars.discourse-cdn.com/v4/letter/t/9de0a6/32.png) [@TheJoJo](https://discourse.nodered.org/u/TheJoJo)\
**Post date:** [5 June 2023 18:51 UTC](https://discourse.nodered.org/t/change-watt-number-in-normal-number/78973/1 "2023-06-05T18:51:02Z")

</div>

Hello, please excuse my bad english.  
In my IoBroker, I want a number in an adapter, e.g. Convert "197.20000000000002 W" to a 'normal' number like e.g. "197" how could I realize this in Node Red?  
TheJoJo

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<div class="post-metadata">

**Author:** ![E1cid](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/e1cid/32/77971_2.png) [@E1cid](https://discourse.nodered.org/u/E1cid)\
**Post date:** [5 June 2023 19:13 UTC](https://discourse.nodered.org/t/change-watt-number-in-normal-number/78973/2 "2023-06-05T19:13:40Z")

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In a function node

```auto
msg.payload = parseInt(msg.payload); // or parseFloat if you want a decimal number
return msg;

```

Or

in a change node  
set `msg.` `payload`  
to value of `J:` `$number(substringBefore($$.payload, "."))`  
Or change `"."` to `" "` for a decimal number

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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:** [4 August 2023 19:14 UTC](https://discourse.nodered.org/t/change-watt-number-in-normal-number/78973/3 "2023-08-04T19:14:20Z")

</div>

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