# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1243

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

**Page:** 1244

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## [Small smart home (sonoff/xiaomi)](https://discourse.nodered.org/t/small-smart-home-sonoff-xiaomi/14280)

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**Author:** [@markost](https://discourse.nodered.org/u/markost)\
**Replies:** 0\
**Last updated:** [13 August 2019 14:00 UTC](https://discourse.nodered.org/t/small-smart-home-sonoff-xiaomi/14280 "2019-08-13T14:00:41Z")

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Continuing the discussion from DIY: Raspberry Pi UPS/Automatic safe power ON/OFF: This was the first part of the project, I would go on the same topic if it is not a problem ... It's about a small project of a smart ho…

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## [Create user for running flows only](https://discourse.nodered.org/t/create-user-for-running-flows-only/14270)

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**Author:** [@amitn](https://discourse.nodered.org/u/amitn)\
**Replies:** 9\
**Last updated:** [13 August 2019 12:12 UTC](https://discourse.nodered.org/t/create-user-for-running-flows-only/14270 "2019-08-13T12:12:20Z")

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I want to create 2 kinds of user for my system - Workflow creator and workflow Runner. The runner will be able only to run the flows and change the input if needed. I'm trying to do so with these changes in settings.js…

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## [Test if the file exist](https://discourse.nodered.org/t/test-if-the-file-exist/14271)

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**Author:** [@oli.nodered](https://discourse.nodered.org/u/oli.nodered)\
**Replies:** 4\
**Last updated:** [13 August 2019 10:37 UTC](https://discourse.nodered.org/t/test-if-the-file-exist/14271 "2019-08-13T10:37:23Z")

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Bonjour i want to know if a file exist on my application. For my test i use fs-ops-access and it is ok if the parameter Filename is unchangeable. But for my application i want to change dynamically the Filename proper…

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## [Random Message Routing](https://discourse.nodered.org/t/random-message-routing/14266)

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**Author:** [@sheminasalam](https://discourse.nodered.org/u/sheminasalam)\
**Replies:** 6\
**Last updated:** [13 August 2019 06:32 UTC](https://discourse.nodered.org/t/random-message-routing/14266 "2019-08-13T06:32:48Z")

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Is there any node which has multiple outputs and which can route an incoming payload to anyone of the outputs randomly.

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## [Function Node to Convert Number to ASCII Format](https://discourse.nodered.org/t/function-node-to-convert-number-to-ascii-format/14238)

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**Author:** [@fisha462](https://discourse.nodered.org/u/fisha462)\
**Replies:** 4\
**Last updated:** [12 August 2019 21:31 UTC](https://discourse.nodered.org/t/function-node-to-convert-number-to-ascii-format/14238 "2019-08-12T21:31:26Z")

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I am trying to make a function node that will convert a number like "9" to its ASCII equivalent. I saw something on GitHub but it looks like the library doesn't exist anymore. I know I need to use the "charCodeAt" prot…

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## [MSSQL Login failed. The login is from an untrusted domain](https://discourse.nodered.org/t/mssql-login-failed-the-login-is-from-an-untrusted-domain/14180)

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**Author:** [@Pitmaster](https://discourse.nodered.org/u/Pitmaster)\
**Replies:** 4\
**Last updated:** [12 August 2019 21:22 UTC](https://discourse.nodered.org/t/mssql-login-failed-the-login-is-from-an-untrusted-domain/14180 "2019-08-12T21:22:50Z")

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I have been reading a lot about this error, but am not having luck. "Login failed. The login is from an untrusted domain and cannot be used with Windows authentication. I am attempting to manually insert a value to a …

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## [Switch between multiple nodes](https://discourse.nodered.org/t/switch-between-multiple-nodes/14261)

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**Author:** [@yoyo89](https://discourse.nodered.org/u/yoyo89)\
**Replies:** 3\
**Last updated:** [12 August 2019 20:55 UTC](https://discourse.nodered.org/t/switch-between-multiple-nodes/14261 "2019-08-12T20:55:01Z")

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Hello, i want to create a flow where i can switch between multiple nodes that goes to a same process for example i want one node(microcontroller) to send data to the cloud and i have the ability to turn it off and make …

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## [Node-RED on Android](https://discourse.nodered.org/t/node-red-on-android/14245)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 2\
**Last updated:** [12 August 2019 16:56 UTC](https://discourse.nodered.org/t/node-red-on-android/14245 "2019-08-12T16:56:41Z")

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Saw this while looking at the telescope thing on Reddit You can install a free lite version but it doesn't have the sensors

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## [Configure TRIGGER node in a variable way to activate digital pin](https://discourse.nodered.org/t/configure-trigger-node-in-a-variable-way-to-activate-digital-pin/14103)

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**Author:** [@Shiniu](https://discourse.nodered.org/u/Shiniu)\
**Replies:** 4\
**Last updated:** [12 August 2019 16:51 UTC](https://discourse.nodered.org/t/configure-trigger-node-in-a-variable-way-to-activate-digital-pin/14103 "2019-08-12T16:51:37Z")

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Hello everyone, I am new to the community, I ask for your help. I want to do a basic PH control: Phosphoric acid is dosed to lower it. I check if the PH is in the required range (5-6). If it is above: I calculate the…

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## [Update 0.20.5 to 0.20.7 hasn't worked](https://discourse.nodered.org/t/update-0-20-5-to-0-20-7-hasnt-worked/14250)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 6\
**Last updated:** [12 August 2019 15:48 UTC](https://discourse.nodered.org/t/update-0-20-5-to-0-20-7-hasnt-worked/14250 "2019-08-12T15:48:35Z")

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This in on my main PiZero that does most of my cheerlights processing :frowning: ran the standard script - all seemed to go OK but when I ran node-red I got Tried runing script again again - same result :frowning: …

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## [Child web pages in flows.nodered.org listings](https://discourse.nodered.org/t/child-web-pages-in-flows-nodered-org-listings/14217)

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**Author:** [@kolban](https://discourse.nodered.org/u/kolban)\
**Replies:** 3\
**Last updated:** [12 August 2019 14:14 UTC](https://discourse.nodered.org/t/child-web-pages-in-flows-nodered-org-listings/14217 "2019-08-12T14:14:13Z")

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If one creates a README.md in ones Github project that is then published to npm, it shows up in the listing of available nodes. For example: However, if one includes sub-page links in the README.md, these show as bro…

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## [Get all node context values as one object](https://discourse.nodered.org/t/get-all-node-context-values-as-one-object/14216)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 5\
**Last updated:** [12 August 2019 12:44 UTC](https://discourse.nodered.org/t/get-all-node-context-values-as-one-object/14216 "2019-08-12T12:44:25Z")

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I can use this msg\['payload'\] = context.keys(); to give me a nice array with all the all the node context keys but I'm after getting the values as well e.g if I've to 3 keynames red,green and blue with values 0,1 and …

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## [contextStorage questions](https://discourse.nodered.org/t/contextstorage-questions/14222)

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**Author:** [@Dave](https://discourse.nodered.org/u/Dave)\
**Replies:** 11\
**Last updated:** [12 August 2019 11:49 UTC](https://discourse.nodered.org/t/contextstorage-questions/14222 "2019-08-12T11:49:54Z")

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I have 3 rpi's running node-red 0.2.6 .. one of them doesn't have the // Context Storage section in the system.js file so I tried updating to 0.2.7 .. it seam's to keep the same system.js file even though I updated, so t…

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## [A little flow for the new \`vcgencmd\` node](https://discourse.nodered.org/t/a-little-flow-for-the-new-vcgencmd-node/14189)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 8\
**Last updated:** [12 August 2019 09:14 UTC](https://discourse.nodered.org/t/a-little-flow-for-the-new-vcgencmd-node/14189 "2019-08-12T09:14:41Z")

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In the thread Ras Pi voltage - new node. I wrote a little flow to play with it and show you what it can do. For me, I don't mind data, but I don't like getting the same data over and over. So I want to differentiate i…

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## [Messages from Node-Red, suggestion](https://discourse.nodered.org/t/messages-from-node-red-suggestion/14209)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 11\
**Last updated:** [12 August 2019 07:59 UTC](https://discourse.nodered.org/t/messages-from-node-red-suggestion/14209 "2019-08-12T07:59:09Z")

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I know this could be seen as petty, but . . . . someone has to mention it. Ok, I import nodes/flows, deploy, or many other things. A nice message pops up. Fair enough. But it is fixed there for a fixed time. Fair e…

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## [Display static graphs like Sine](https://discourse.nodered.org/t/display-static-graphs-like-sine/14241)

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**Author:** [@Jochen1980](https://discourse.nodered.org/u/Jochen1980)\
**Replies:** 1\
**Last updated:** [12 August 2019 07:31 UTC](https://discourse.nodered.org/t/display-static-graphs-like-sine/14241 "2019-08-12T07:31:42Z")

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Hello, is it possible to display a graph (like a sine) on the dashboard with static data? The graph I would like to show will not change, I just want to show it.

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## [Node-red library update issue](https://discourse.nodered.org/t/node-red-library-update-issue/14237)

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**Author:** [@Arakhith](https://discourse.nodered.org/u/Arakhith)\
**Replies:** 7\
**Last updated:** [12 August 2019 06:19 UTC](https://discourse.nodered.org/t/node-red-library-update-issue/14237 "2019-08-12T06:19:11Z")

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ehostunreach 104.16.23.35:443 on raspberry pi when I try to update node-red library Command: npm install node-red-contrib-interval-length

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## [Request for onclick option on ui\_gauge](https://discourse.nodered.org/t/request-for-onclick-option-on-ui-gauge/813)

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**Author:** [@karlbo](https://discourse.nodered.org/u/karlbo)\
**Replies:** 1\
**Last updated:** [12 August 2019 05:39 UTC](https://discourse.nodered.org/t/request-for-onclick-option-on-ui-gauge/813 "2019-08-12T05:39:38Z")

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Hi, it struck me today as i was tinkering with one of my projects, it would be very nice to have a onclick function on this ui. Any thoughts on that? Best regards Karl

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## [Slider issue on Android Chrome browser](https://discourse.nodered.org/t/slider-issue-on-android-chrome-browser/13302)

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**Author:** [@injector22](https://discourse.nodered.org/u/injector22)\
**Replies:** 7\
**Last updated:** [12 August 2019 03:14 UTC](https://discourse.nodered.org/t/slider-issue-on-android-chrome-browser/13302 "2019-08-12T03:14:00Z")

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I have started to notice that when using a slider (sending value when released) if I touch and move the slider knob the value won't be sent. However, if I press the the slider bar instead which moves the knob it'll send …

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## [Pigpio commands into NodeRed](https://discourse.nodered.org/t/pigpio-commands-into-nodered/14221)

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**Author:** [@Gummix](https://discourse.nodered.org/u/Gummix)\
**Replies:** 14\
**Last updated:** [11 August 2019 20:04 UTC](https://discourse.nodered.org/t/pigpio-commands-into-nodered/14221 "2019-08-11T20:04:40Z")

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Hello, I'm looking for a way to insert following terminal commands into NodeRed: sudo pigpiod python import pigpio pi=pigpio.pi() pi.hardware\_PWM(12, 25000, 1e6\*0.25) # 25000Hz 25% dutycycle(normaly) The whole thi…

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## [Unable to remove old server](https://discourse.nodered.org/t/unable-to-remove-old-server/14220)

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**Author:** [@Jmilesy](https://discourse.nodered.org/u/Jmilesy)\
**Replies:** 10\
**Last updated:** [11 August 2019 15:49 UTC](https://discourse.nodered.org/t/unable-to-remove-old-server/14220 "2019-08-11T15:49:00Z")

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I imported an example flow to look at how it worked. It had server settings in it and when i deleted the flow i also deleted the server. However something is still trying to reference it, but i cannot see it on any of …

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## [Initialising context variables if they don't exist](https://discourse.nodered.org/t/initialising-context-variables-if-they-dont-exist/14214)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 3\
**Last updated:** [11 August 2019 13:46 UTC](https://discourse.nodered.org/t/initialising-context-variables-if-they-dont-exist/14214 "2019-08-11T13:46:32Z")

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JS Gurus Assemble :slight\_smile: I feel this could be done in a more JS way - can it? if (!(context.get('blue'))) { context.set('blue', 'initial'); }

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## [Add HTTP Persistence (connection reuse) to http-request node](https://discourse.nodered.org/t/add-http-persistence-connection-reuse-to-http-request-node/13986)

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**Author:** [@Ibrahim.nezar](https://discourse.nodered.org/u/Ibrahim.nezar)\
**Replies:** 6\
**Last updated:** [11 August 2019 10:13 UTC](https://discourse.nodered.org/t/add-http-persistence-connection-reuse-to-http-request-node/13986 "2019-08-11T10:13:54Z")

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Hi, I was setting up a front-end that interfaces with an API backend however I couldn't use that API due to the limitation on HTTP keep-alive or HTTP persistence feature were not possible on Node-RED "http request" core…

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## [A little node I made to help with people debug their flows](https://discourse.nodered.org/t/a-little-node-i-made-to-help-with-people-debug-their-flows/14207)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 4\
**Last updated:** [11 August 2019 09:41 UTC](https://discourse.nodered.org/t/a-little-node-i-made-to-help-with-people-debug-their-flows/14207 "2019-08-11T09:41:47Z")

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This is a handy little node that you can use if you are seeing (or more so: not seeing) the right thing in your flow/s. The situation rises where you are trying to see what is going on but while doing that, other messa…

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## [Something weird happening](https://discourse.nodered.org/t/something-weird-happening/14211)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 1\
**Last updated:** [11 August 2019 09:15 UTC](https://discourse.nodered.org/t/something-weird-happening/14211 "2019-08-11T09:15:14Z")

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Ok, I powered down the RPI and took it to someone to try and work on the problem regarding the WAP. Got home, powered it up, tried (and failed.) Restarted NR though as the RPI does have a job to do. I am getting spur…

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## [Sqlite3 constant issues](https://discourse.nodered.org/t/sqlite3-constant-issues/14090)

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**Author:** [@scargill](https://discourse.nodered.org/u/scargill)\
**Replies:** 28\
**Last updated:** [11 August 2019 07:53 UTC](https://discourse.nodered.org/t/sqlite3-constant-issues/14090 "2019-08-11T07:53:30Z")

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I realise that SQLITE3 is an external module and not the responsibility of the Node-Red guys, but honestly, every time there is an upgrade showing in the NR palette manager for SQLITE3 in Node-Red (and thanks to DCJ and …

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## [How to create an event in an agenda](https://discourse.nodered.org/t/how-to-create-an-event-in-an-agenda/12900)

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**Author:** [@mike67](https://discourse.nodered.org/u/mike67)\
**Replies:** 21\
**Last updated:** [10 August 2019 22:30 UTC](https://discourse.nodered.org/t/how-to-create-an-event-in-an-agenda/12900 "2019-08-10T22:30:15Z")

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Hello I am looking for the possibility to create, move and delete an event in an agenda by the way of a simple mail, for example, or any other way I have seen that it is possible to create a .ics file in wich it is pos…

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## [Is there a way to reload functionGlobalContext items without restarting NR?](https://discourse.nodered.org/t/is-there-a-way-to-reload-functionglobalcontext-items-without-restarting-nr/14205)

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**Author:** [@thatcadguy](https://discourse.nodered.org/u/thatcadguy)\
**Replies:** 4\
**Last updated:** [10 August 2019 21:26 UTC](https://discourse.nodered.org/t/is-there-a-way-to-reload-functionglobalcontext-items-without-restarting-nr/14205 "2019-08-10T21:26:13Z")

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See subject. Thanks in advance.

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## [Why the string split result including the "undefined"?](https://discourse.nodered.org/t/why-the-string-split-result-including-the-undefined/14195)

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**Author:** [@316248269](https://discourse.nodered.org/u/316248269)\
**Replies:** 3\
**Last updated:** [10 August 2019 19:59 UTC](https://discourse.nodered.org/t/why-the-string-split-result-including-the-undefined/14195 "2019-08-10T19:59:06Z")

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Hi: I write this function to split a string. var D = msg.payload; var M = ; var j = 0; for(var i = 0; i \< D.length; i++){ if(D\[i\]!='|') M\[j\] += D\[i\]; else j++; } msg.payload = M; return msg; For example, if …

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## [Lists. Need a bit of help](https://discourse.nodered.org/t/lists-need-a-bit-of-help/14157)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 14\
**Last updated:** [10 August 2019 15:44 UTC](https://discourse.nodered.org/t/lists-need-a-bit-of-help/14157 "2019-08-10T15:44:23Z")

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I'm kind of stuck with a problem. (Apart from the obvious) Here is part of the flow and the list generation: \[{"id":"1deb29d5.dfb98e","type":"ui\_button","z":"a3bd09a.b852978","name":"Generate reboot history list","gro…

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