# No While Loops in Expressions?

**URL:** <https://forum.inductiveautomation.com/t/no-while-loops-in-expressions/87037>\
**Category:** Ignition\
**Tags:** ignition81, perspective\
**Created:** [March 8, 2024, 2:05pm UTC](https://forum.inductiveautomation.com/t/no-while-loops-in-expressions/87037 "2024-03-08T14:05:40Z")\
**Posts on this page:** 1\
**Showing post:** 10

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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [March 8, 2024, 3:04pm UTC](https://forum.inductiveautomation.com/t/no-while-loops-in-expressions/87037/10 "2024-03-08T15:04:50Z")

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Side note, totally not applicable to **this** solution:

While Ignition natively provides no looping in pure expressions bindings, it **IS** possible:

> [@Automation Professionals' Integration Toolkit Module](https://forum.inductiveautomation.com/t/automation-professionals-integration-toolkit-module/74934):
>
> Automation Professionals is pleased to announce the immediately availability of a major upgrade to its free Simulation Aids Integration Toolkit module. The new feature justifying the "major upgrade" language is the implementation of eleven thirty-one new expression functions which use iteration to accomplish complex transforms of datasets and lists, to or from other datasets and lists, applying filtering, ordering, and computed new columns along the way. While there are certain operations that…

Replacing jython with pure expressions is a huge performance win, and Perspective needs all the help it can get.

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