# What is the Node.js command prompt used for?

**URL:** <https://discourse.nodered.org/t/what-is-the-node-js-command-prompt-used-for/35748>\
**Category:** General\
**Created:** [11 November 2020 14:28 UTC](https://discourse.nodered.org/t/what-is-the-node-js-command-prompt-used-for/35748 "2020-11-11T14:28:08Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![adamelli](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/adamelli/32/31793_2.png) [@adamelli](https://discourse.nodered.org/u/adamelli)\
**Post date:** [11 November 2020 14:28 UTC](https://discourse.nodered.org/t/what-is-the-node-js-command-prompt-used-for/35748/1 "2020-11-11T14:28:08Z")

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Just curious.  
All the applications I've done using Node-RED use the regular Command Prompt.

(I haven't had much luck just searching for this question as I only saw unrelated results.)

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**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [11 November 2020 14:42 UTC](https://discourse.nodered.org/t/what-is-the-node-js-command-prompt-used-for/35748/2 "2020-11-11T14:42:36Z")

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It is very useful for testing things out. Runing node gives you a handy [REPL](https://www.freecodecamp.org/news/this-is-why-your-read-eval-print-loop-is-so-amazing-cf0362003983/) environment

e.g.  
 ![2020-11-11_14-39-40](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/8/e/8e4d6d8adc65b9a6084321827fbc69ebd1168510.gif)

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [10 January 2021 14:42 UTC](https://discourse.nodered.org/t/what-is-the-node-js-command-prompt-used-for/35748/3 "2021-01-10T14:42:38Z")

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Closed on 10 January 2021 14:42 UTC

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