TypeError: Cannot find function asDatetimeItem in object Item. (line 57, file "Code")

[crazymovingco]

Why is running the appscript giving this error?

[SableRaf]

This is a case error. This script builds the constructor method from the item's type adding as as a prefix and Item as a suffix as seen below:

var itemTypeConstructorName = snakeCaseToCamelCase("AS_" + item.getType().toString() + "_ITEM"); 

The problem is that the itemType for date-time is DATETIME and not DATE_TIME so snakeCaseToCamelCase() returns asDatetimeItem() instead of asDateTimeItem() (with a capital T)

See the form API reference for item.

[SableRaf]

Here's how I fixed it:

  // Downcast items to access type-specific properties
  var typeString = item.getType().toString();
  if(typeString==='DATETIME') typeString='DATE_TIME' // handle the corner case of DATETIME 
  var itemTypeConstructorName = snakeCaseToCamelCase("AS_" + typeString + "_ITEM");  
  var typedItem = item[itemTypeConstructorName]();