# How to use IfNode to evaluate a variable's value

**URL:** https://forum.universal-robots.com/t/how-to-use-ifnode-to-evaluate-a-variables-value/3729
**Category:** URCap Development
**Created:** [February 26, 2019, 3:47am UTC](https://forum.universal-robots.com/t/how-to-use-ifnode-to-evaluate-a-variables-value/3729 "2019-02-26T03:47:22Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![anon41344975](https://avatars.discourse-cdn.com/v4/letter/a/d9b06d/32.png) [@anon41344975](https://forum.universal-robots.com/u/anon41344975)
#### Post date: [February 26, 2019, 3:47am UTC](https://forum.universal-robots.com/t/how-to-use-ifnode-to-evaluate-a-variables-value/3729/1 "2019-02-26T03:47:22Z")

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Hello,  
I want to use IfNode to evluate a variable’s value, if the value is equal “1”, the plugin will execute a child program node, how to do it?

Thanks.

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### Author: ![anon82484413](https://avatars.discourse-cdn.com/v4/letter/a/d2c977/32.png) [@anon82484413](https://forum.universal-robots.com/u/anon82484413)
#### Post date: [February 26, 2019, 10:38am UTC](https://forum.universal-robots.com/t/how-to-use-ifnode-to-evaluate-a-variables-value/3729/2 "2019-02-26T10:38:00Z")

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Like this?

 ![Udklip](https://us1.discourse-cdn.com/flex020/uploads/universal_robots/original/2X/8/86de9c2abcdc21ed73776d569e5ce8038c53370a.png)

or is it in script?

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### Author: ![anon41344975](https://avatars.discourse-cdn.com/v4/letter/a/d9b06d/32.png) [@anon41344975](https://forum.universal-robots.com/u/anon41344975)
#### Post date: [February 27, 2019, 9:35am UTC](https://forum.universal-robots.com/t/how-to-use-ifnode-to-evaluate-a-variables-value/3729/3 "2019-02-27T09:35:07Z")

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Thanks, I want to write Java code to implement it.