Formula evaluation of formula using len() function not working properly

[mrtnbrst]

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Category

[x] Bug

Version

Please specify what version of the library you are using: [ 3.20.0 ]

If you are not using the latest release, please update and see if the issue is resolved before submitting an issue.

Expected / Desired Behavior / Question

Proper evaluation of validation formula =len(internalColumnName)>6

Observed Behavior

Considers strings with length >6 to be not valid.

Steps to Reproduce

Add column with validation formula =len(internalColumnName)>6, check how it does not consider strings that are longer than 6 as valid even though the default SharePoint form does

sp-dev-fx-controls-react/src/common/utilities/FormulaEvaluation.ts

Line 538 in 5d17c03

case "length": {

Here length is used as length function, but it should be len as far as I understand (https://support.microsoft.com/en-us/office/len-function-038f2e0d-57d3-4f35-ae74-9a79d66e8fc2)

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