Xml.Sum
Overview
Returns sum of child elements on current node or specified xpath.
number myXml.Sum()
Returns sum of child elements on current node or specified xpath.
number myXml.Sum(xpath: string)
Arguments
string xpath
XPath to evaluate. If not specified current node childs are selected.
Example
Evaluate with an xpath
var totalAmount = $Xml.Sum('//Customer//Order/Total');
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