Help With Iterate Expression (Sum Values)

10-01-2021 07:04 AM
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New Contributor III

Is there any way to sum the values returned from the below expression, I cant figure it out. Thanks in Advance


var floodplain = FeatureSetByName($datastore, "RES_FLOOD_HAZARD")


// Get FeatureSet of intersecting flood zones

var flood_fs = Intersects($FEATURE, floodplain))


// Instantiate output string

var out_str = 'Flood Zone Acreage:'


// Iterate over FeatureSet

for(var f in flood_fs){

    // Get intersection, calculate area

    var xs = Intersection(f, $feature)


    // Calculate acreage

    var a = Areageodetic(xs,'acres')


    // Append to output string

    out_str += `\n${f.fld_zone} | ${a} ac`



return out_str

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