# Scope of $variable in Let statement in Calculated Field

**URL:** <https://the.fmsoup.org/t/scope-of-variable-in-let-statement-in-calculated-field/3155>\
**Category:** Questions\
**Tags:** scripting, variables\
**Created:** [October 19, 2022, 6:52pm UTC](https://the.fmsoup.org/t/scope-of-variable-in-let-statement-in-calculated-field/3155 "2022-10-19T18:52:19Z")\
**Posts on this page:** 1\
**Showing post:** 9

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**Author:** ![Malcolm](https://yyz2.discourse-cdn.com/flex030/user_avatar/the.fmsoup.org/malcolm/32/196_2.png) [@Malcolm](https://the.fmsoup.org/u/Malcolm)\
**Post date:** [October 20, 2022, 3:40am UTC](https://the.fmsoup.org/t/scope-of-variable-in-let-statement-in-calculated-field/3155/9 "2022-10-20T03:40:32Z")

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This is a bug that could have serious consequences. No-one wants to have values from field calculations bubbling up into their scripts.

It is an excellent reason to ensure that you limit the scope of your variables as tightly as possible. In your case, the variable $N can be more tightly scoped by removing the $ character, making it a calculation variable.

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