How to get the No. of documents created last day

a!localVariables(
local!document: folder(
cons!LSME_DOCUMENT_FOLDER,
"documentChildren"
),
local!dateCreated: a!forEach(
items: local!document,
expression: if(
todate(document(fv!item, "dateCreated")) > today()-1,
true(),
false()
)
),
length(
remove(
local!dateCreated,
wherecontains(false(), local!dateCreated)
)
)
)

a!localVariables(
local!document: folder(
cons!LSME_DOCUMENT_FOLDER,
"documentChildren"
),
local!dateCreated: a!forEach(
items: local!document,
expression: if(
todate(document(fv!item, "dateCreated")) > today()-1,
true(),
false()
)
),
length(
remove(
local!dateCreated,
wherecontains(false(), local!dateCreated)
)
)
)

Thank you Prafuls0004. This solves my query

An alternative approach

a!localVariables(
  local!document: folder(
    cons!LSME_DOCUMENT_FOLDER,
    "documentChildren"
  ),
  sum(
    a!forEach(
      items: local!document,
      expression: todate(document(fv!item, "dateCreated")) > today()-1,
    )
  )
)

When converting a boolean value into an integer, it becomes 0 for false and 1 for true. We can use that to calculate the sum of true values in a boolean list.

BTW, a comparison always evaluates to a boolean. Putting it into an if() will not make this a more elegant implementation.