Loop through an array of scalar values

Hi, I’m trying to loop through an array of scalar values. From InfluxDB document [Extract scalar values in Flux](https://docs.influxdata.com/influxdb/cloud/query-data/flux/scalar-values/#sample-data), if we use the `findColumn` method, it will return an array of scalar values. I have tried to access the elements of the array by arr[idx]. Is there any way to loop through the array because we don’t know its length?

Start with the linked InfluxDB documentation page, especially the “Extract scalar values in Flux” sample and the `findColumn` usage. Determine whether the documentation explains iteration over an array of scalar values without a known length; done means the relevant guidance or limitation is clearly documented.

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