# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1251

[Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md)

**Page:** 1252

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## [Run on windows as service](https://discourse.nodered.org/t/run-on-windows-as-service/13569)

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**Author:** [@mannirivera72](https://discourse.nodered.org/u/mannirivera72)\
**Replies:** 1\
**Last updated:** [22 July 2019 18:24 UTC](https://discourse.nodered.org/t/run-on-windows-as-service/13569 "2019-07-22T18:24:09Z")

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Hi, I have created a node-red application that works together with an Opto 22 controller to monitor alarms. I installed the app on the computer used on the company where it is going to be working. But sometimes operator…

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## [Systems Variable for functionName?](https://discourse.nodered.org/t/systems-variable-for-functionname/13551)

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**Author:** [@IoTPlay](https://discourse.nodered.org/u/IoTPlay)\
**Replies:** 4\
**Last updated:** [22 July 2019 17:24 UTC](https://discourse.nodered.org/t/systems-variable-for-functionname/13551 "2019-07-22T17:24:25Z")

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Is there a systems variable with which to read the function name from which it was called? (in a function).. ?

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## [MSSQL node-red-contrib-mssql-plus behavior](https://discourse.nodered.org/t/mssql-node-red-contrib-mssql-plus-behavior/7340)

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**Author:** [@tree-frog](https://discourse.nodered.org/u/tree-frog)\
**Replies:** 11\
**Last updated:** [22 July 2019 17:20 UTC](https://discourse.nodered.org/t/mssql-node-red-contrib-mssql-plus-behavior/7340 "2019-07-22T17:20:32Z")

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"node-red-contrib-mssql-plus", I thought was working fine until I upgraded to NR 20.0-beta.3. But I'm not sure if the 20.0-beta.3 is the problem. It's not exactly not working, but giving me an error when I click a button…

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## [Need advice on prototype pollution breaking (for example) Array.find(), causing issues with other nodes](https://discourse.nodered.org/t/need-advice-on-prototype-pollution-breaking-for-example-array-find-causing-issues-with-other-nodes/13543)

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**Author:** [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Replies:** 2\
**Last updated:** [22 July 2019 17:16 UTC](https://discourse.nodered.org/t/need-advice-on-prototype-pollution-breaking-for-example-array-find-causing-issues-with-other-nodes/13543 "2019-07-22T17:16:33Z")

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Hi, I am updating a cron type node and using a new library that works perfectly outside of node-red but has (had) a serious bug when ran inside a custom node. fore warning... I had an old version of node-red-contrib-op…

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## [Functionnode: If loop with time](https://discourse.nodered.org/t/functionnode-if-loop-with-time/13546)

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**Author:** [@Kiwi\_gamer01](https://discourse.nodered.org/u/Kiwi_gamer01)\
**Replies:** 6\
**Last updated:** [22 July 2019 14:36 UTC](https://discourse.nodered.org/t/functionnode-if-loop-with-time/13546 "2019-07-22T14:36:05Z")

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I have written this function that if the value x for a certain time (Time1) is higher than the value y. All values ​​are numbers. After I'm not familiar with javascript I do not know why the if loop with the counter doe…

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## [Msg.string\[14\] Error circular](https://discourse.nodered.org/t/msg-string-14-error-circular/13539)

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**Author:** [@davidcgu](https://discourse.nodered.org/u/davidcgu)\
**Replies:** 11\
**Last updated:** [22 July 2019 13:53 UTC](https://discourse.nodered.org/t/msg-string-14-error-circular/13539 "2019-07-22T13:53:59Z")

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Good morning Guys How can I catch up to understand where is coming from the following error? I tried to disable tab and select only debug current flow but anything changes, I have same error at any tab I'm. Thanks i…

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## [\[Solved\] Jsonata in a change node: Can you use a msg variable for an array index?](https://discourse.nodered.org/t/solved-jsonata-in-a-change-node-can-you-use-a-msg-variable-for-an-array-index/13529)

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**Author:** [@zenofmud](https://discourse.nodered.org/u/zenofmud)\
**Replies:** 6\
**Last updated:** [22 July 2019 11:41 UTC](https://discourse.nodered.org/t/solved-jsonata-in-a-change-node-can-you-use-a-msg-variable-for-an-array-index/13529 "2019-07-22T11:41:41Z")

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I know I can do this in a function node, but I want to figure out how do do this in a change node with jsonata. Here is the msg: {"payload":0, "socketid":"g7R4DAwyPG3jLyHKAACQ", "\_msgid":"2c51e9cf.94bd06", "path":"/U…

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## [How to send data to excel](https://discourse.nodered.org/t/how-to-send-data-to-excel/13465)

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**Author:** [@adamf](https://discourse.nodered.org/u/adamf)\
**Replies:** 14\
**Last updated:** [22 July 2019 11:33 UTC](https://discourse.nodered.org/t/how-to-send-data-to-excel/13465 "2019-07-22T11:33:00Z")

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Hi, I am trying to send data of wireless temperature and humidity sensor to excel. I have created nodes here I have used here function node and file node to save data. but i am unable to get data in excel. pleas…

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## [SERIAL input node issue!](https://discourse.nodered.org/t/serial-input-node-issue/13454)

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**Author:** [@georgethomas08](https://discourse.nodered.org/u/georgethomas08)\
**Replies:** 8\
**Last updated:** [22 July 2019 11:23 UTC](https://discourse.nodered.org/t/serial-input-node-issue/13454 "2019-07-22T11:23:21Z")

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Hi , I was using serial input and output node, everything was working fine but after some point serial input node is not working at all in raspberry pi 3 b+, I reinstalled to rasbian OS and node-red server, still its n…

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## [UI - Text Node with a function node](https://discourse.nodered.org/t/ui-text-node-with-a-function-node/13532)

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**Author:** [@niko](https://discourse.nodered.org/u/niko)\
**Replies:** 2\
**Last updated:** [22 July 2019 08:57 UTC](https://discourse.nodered.org/t/ui-text-node-with-a-function-node/13532 "2019-07-22T08:57:31Z")

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Hello there I am very new to node-red and programming in general i was wondering if there was a way to write a function before a UI - Text Node that would display the message if there was a reading but to not display any…

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## [Source code of RED.nodes.createNode](https://discourse.nodered.org/t/source-code-of-red-nodes-createnode/12787)

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**Author:** [@natrayanp](https://discourse.nodered.org/u/natrayanp)\
**Replies:** 4\
**Last updated:** [22 July 2019 07:28 UTC](https://discourse.nodered.org/t/source-code-of-red-nodes-createnode/12787 "2019-07-22T07:28:41Z")

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Hi please help me to point to the source code of the class source code of RED.nodes. i would like to see createNode method.

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## [Dashboard layout/groups gone wild](https://discourse.nodered.org/t/dashboard-layout-groups-gone-wild/13534)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 0\
**Last updated:** [22 July 2019 03:53 UTC](https://discourse.nodered.org/t/dashboard-layout-groups-gone-wild/13534 "2019-07-22T03:53:24Z")

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NR.. 20.5 Dashboard 2.15.4 Ubuntu 18.4 LTS I am/was trying to add a group on a screen. Here's the pictures. Comments BELOW the picture. Starting point. The two nodes (middle of screen) are in "temp/group1" S…

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## [Read file in from iCloud](https://discourse.nodered.org/t/read-file-in-from-icloud/13525)

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**Author:** [@gavraq](https://discourse.nodered.org/u/gavraq)\
**Replies:** 3\
**Last updated:** [21 July 2019 21:42 UTC](https://discourse.nodered.org/t/read-file-in-from-icloud/13525 "2019-07-21T21:42:46Z")

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Hi I would like to read a file using the file in node, but the file is stored on my iCloud drive. How do I configure the file in node (ie the format for the Filename path) to point to the file location on iCloud. Than…

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## [Wall Mounted UI Device Recommendations?](https://discourse.nodered.org/t/wall-mounted-ui-device-recommendations/13520)

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**Author:** [@Randy](https://discourse.nodered.org/u/Randy)\
**Replies:** 4\
**Last updated:** [21 July 2019 21:22 UTC](https://discourse.nodered.org/t/wall-mounted-ui-device-recommendations/13520 "2019-07-21T21:22:55Z")

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I have a Dashboard created to control and monitor various functions around my house. But instead of pulling out my cellphone every time I want to control a function, I want to place a couple small tablets around the hous…

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## [Ui button issue on iphone / ipad & android phone / tablet](https://discourse.nodered.org/t/ui-button-issue-on-iphone-ipad-android-phone-tablet/13516)

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**Author:** [@Dave](https://discourse.nodered.org/u/Dave)\
**Replies:** 1\
**Last updated:** [21 July 2019 16:43 UTC](https://discourse.nodered.org/t/ui-button-issue-on-iphone-ipad-android-phone-tablet/13516 "2019-07-21T16:43:37Z")

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I have a problem when displaying text or background colours on a ui button on a iphone, so I have a simple button that changes colour from red to green when pressed, on Dashboard 2.9.8 the button works fine, press red ch…

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## [Looking for the cron-like node/flow](https://discourse.nodered.org/t/looking-for-the-cron-like-node-flow/13495)

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**Author:** [@ded\_banzai](https://discourse.nodered.org/u/ded_banzai)\
**Replies:** 5\
**Last updated:** [21 July 2019 15:44 UTC](https://discourse.nodered.org/t/looking-for-the-cron-like-node-flow/13495 "2019-07-21T15:44:46Z")

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Hi! I am looking for the cron-like node. I need to send messages using editable playlist which works similar way as the crontab file. For example (pseudo code): 19/07/19 21:00 {"topic":"topic1, "payload":"payload1"} 1…

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## [Syslog filled with "(node:##) TimeoutOverflowWarning: ########## does not fit into a 32-bit signed integer"](https://discourse.nodered.org/t/syslog-filled-with-node-timeoutoverflowwarning-does-not-fit-into-a-32-bit-signed-integer/11966)

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**Author:** [@Jesse305](https://discourse.nodered.org/u/Jesse305)\
**Replies:** 15\
**Last updated:** [21 July 2019 14:58 UTC](https://discourse.nodered.org/t/syslog-filled-with-node-timeoutoverflowwarning-does-not-fit-into-a-32-bit-signed-integer/11966 "2019-07-21T14:58:49Z")

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Hello, My syslog is being filled with variations of the following error messages (this is just a short excerpt): (node:1215) TimeoutOverflowWarning: 2587711790 does not fit into a 32-bit signed integer. Timeout durat…

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## [Debug to Gauge Node](https://discourse.nodered.org/t/debug-to-gauge-node/13515)

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**Author:** [@Rawbutter](https://discourse.nodered.org/u/Rawbutter)\
**Replies:** 7\
**Last updated:** [21 July 2019 13:56 UTC](https://discourse.nodered.org/t/debug-to-gauge-node/13515 "2019-07-21T13:56:26Z")

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G'day, Having a couple of issues getting my msg.payload to display as a value on my guage. I think I'm missing something faily simple. Im running a loadcell through a HX711 into my arduino and using a serial node to di…

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## [Migrating from 0.17.5 - asking for trouble?](https://discourse.nodered.org/t/migrating-from-0-17-5-asking-for-trouble/12905)

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**Author:** [@realsquash](https://discourse.nodered.org/u/realsquash)\
**Replies:** 11\
**Last updated:** [21 July 2019 13:46 UTC](https://discourse.nodered.org/t/migrating-from-0-17-5-asking-for-trouble/12905 "2019-07-21T13:46:12Z")

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I have NR 17.5 with UIBuilder that has been running a long time on a Pi 3B. I've avoided upgrading it because it was stable and ran great. Now I have a Pi 4B and need to get everything going on a fresh install of Buste…

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## [Delete unused nodes](https://discourse.nodered.org/t/delete-unused-nodes/13508)

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**Author:** [@aabbas](https://discourse.nodered.org/u/aabbas)\
**Replies:** 9\
**Last updated:** [21 July 2019 11:50 UTC](https://discourse.nodered.org/t/delete-unused-nodes/13508 "2019-07-21T11:50:20Z")

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Hi, I deleted nodes from my flow and from configuration nodes I deleted all unused nodes but when I deploying I get this message. How can I find or delete unused nodes. Thank you

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## [Node-RED 0.20.7 released](https://discourse.nodered.org/t/node-red-0-20-7-released/12955)

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**Author:** [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Replies:** 25\
**Last updated:** [21 July 2019 05:58 UTC](https://discourse.nodered.org/t/node-red-0-20-7-released/12955 "2019-07-21T05:58:30Z")

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Hi, Here's a quick 0.20.7 release to start the weekend. Update jsonata to 1.6.5 which should fix #2183 Ensure the subflow stop promise is waiting for before restarting Properly escape node types in palette This incl…

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## [Installing NR/Node on a new Pi](https://discourse.nodered.org/t/installing-nr-node-on-a-new-pi/13503)

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**Author:** [@scargill](https://discourse.nodered.org/u/scargill)\
**Replies:** 8\
**Last updated:** [20 July 2019 23:14 UTC](https://discourse.nodered.org/t/installing-nr-node-on-a-new-pi/13503 "2019-07-20T23:14:27Z")

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Hi I'm busy doing yet another NR install and.. Some comments on Node-Red install on Raspberry Pi (Stretch or Buster - RPI4 but most likely 2, 3 or 4) I’ve been meaning to make for some time.. When installing nodes, a…

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## [Split Dht11 data from.python script](https://discourse.nodered.org/t/split-dht11-data-from-python-script/13507)

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**Author:** [@mshaz](https://discourse.nodered.org/u/mshaz)\
**Replies:** 2\
**Last updated:** [20 July 2019 22:02 UTC](https://discourse.nodered.org/t/split-dht11-data-from-python-script/13507 "2019-07-20T22:02:09Z")

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Hi I need help. I want to display data in UI as gauges. How do I split them? Thank you

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## [Flow works in one lineup, but not in others](https://discourse.nodered.org/t/flow-works-in-one-lineup-but-not-in-others/11018)

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**Author:** [@factorina](https://discourse.nodered.org/u/factorina)\
**Replies:** 8\
**Last updated:** [20 July 2019 20:46 UTC](https://discourse.nodered.org/t/flow-works-in-one-lineup-but-not-in-others/11018 "2019-07-20T20:46:51Z")

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Newbie here. Love Node-RED, lots of success so far but this (seemingly) simple issue has me stumped. I am using the 'cast' node from here https://github.com/Hypnos3/node-red-contrib-cast and I have the demo code up an…

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## [Error after upgrading](https://discourse.nodered.org/t/error-after-upgrading/13487)

<div class="topic-metadata">

**Author:** [@davidcgu](https://discourse.nodered.org/u/davidcgu)\
**Replies:** 20\
**Last updated:** [20 July 2019 16:44 UTC](https://discourse.nodered.org/t/error-after-upgrading/13487 "2019-07-20T16:44:06Z")

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Good afternoon I'm upograding my system to latest versions and have error as follows at start: (node:7539) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 ready listeners added. Use emitter.…

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## [MQTT - Storing data when disconnected](https://discourse.nodered.org/t/mqtt-storing-data-when-disconnected/9306)

<div class="topic-metadata">

**Author:** [@pjp8w](https://discourse.nodered.org/u/pjp8w)\
**Replies:** 14\
**Last updated:** [20 July 2019 13:21 UTC](https://discourse.nodered.org/t/mqtt-storing-data-when-disconnected/9306 "2019-07-20T13:21:34Z")

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My use case is for a mobile device that can go in and out of network coverage. I have a constant data feed from sensors and need the data to backfill/send when network is reconnected. So my MQTT node goes from connected…

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## [Activate / deactivate a node with a dashboard switsch](https://discourse.nodered.org/t/activate-deactivate-a-node-with-a-dashboard-switsch/13481)

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**Author:** [@Kiwi\_gamer01](https://discourse.nodered.org/u/Kiwi_gamer01)\
**Replies:** 5\
**Last updated:** [20 July 2019 12:58 UTC](https://discourse.nodered.org/t/activate-deactivate-a-node-with-a-dashboard-switsch/13481 "2019-07-20T12:58:07Z")

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How can I use a dashboard switch to enable or disable a node or program section

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## ["TypeError: Cannot read property '0' of undefined" #444](https://discourse.nodered.org/t/typeerror-cannot-read-property-0-of-undefined-444/13500)

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**Author:** [@farishsn](https://discourse.nodered.org/u/farishsn)\
**Replies:** 3\
**Last updated:** [20 July 2019 07:49 UTC](https://discourse.nodered.org/t/typeerror-cannot-read-property-0-of-undefined-444/13500 "2019-07-20T07:49:39Z")

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I'm very beginner to Node-red and influx db. I was trying to return values from two functions say X & Y msg.payload1, msg.payload2 on to a different function Z which is below, so i can send these values to influx db with…

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## [Label reference error in sentiment node](https://discourse.nodered.org/t/label-reference-error-in-sentiment-node/13496)

<div class="topic-metadata">

**Author:** [@okhiroyuki](https://discourse.nodered.org/u/okhiroyuki)\
**Replies:** 2\
**Last updated:** [20 July 2019 06:43 UTC](https://discourse.nodered.org/t/label-reference-error-in-sentiment-node/13496 "2019-07-20T06:43:54Z")

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Hi. I noticed that I was using sentiment node, so I posted. What Label reference error in sentiment node. Environment Node-RED: v0.20.7 Node.js: v10.13.0 node-red-node-sentiment: 0.1.3 MacOS : 10.14.5 Why It is be…

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## [Looking back to an old thread. Buttons and their settings](https://discourse.nodered.org/t/looking-back-to-an-old-thread-buttons-and-their-settings/13493)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 0\
**Last updated:** [20 July 2019 00:52 UTC](https://discourse.nodered.org/t/looking-back-to-an-old-thread-buttons-and-their-settings/13493 "2019-07-20T00:52:04Z")

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While trying to get my confusion sorted I saw this thread: button icons I have this flow: \[{"id":"8727ad88.92807","type":"inject","z":"df652827.d02c3","name":"","topic":"","payload":"","payloadType":"date","repeat":""…

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