sum

Sums the elements in the given array

Arguments

• array - The array to sum
• selector(element, index) - (optional) The selector to apply to each element before summing

Example

{
  "$template": {
	"$comment": "The field below will be 31",
	"test": "{{[1, 2, 3, 5, 8, 10].sum(x => x)}}"
  }
}