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JavaScript op.subtract

MarkLogic 12 EA 1 Product Documentation
op:subtract

op:subtract(
   $left as item(),
   $right as item()
) as map:map

Summary

This function subtracts the right numericExpression from the left numericExpression and returns the value.

Parameters
$left The left numeric expression.
$right The right numeric expression.

Example

xquery version "1.0-ml";

import module namespace op="http://marklogic.com/optic"
     at "/MarkLogic/optic.xqy";

let $employees := op:from-view("main", "employees")
 
return $employees
    => op:select(("FirstName", "LastName", "Position", "EmployeeID",
                  op:as("subtracted", op:subtract(op:col("EmployeeID"), 2))))
    => op:result();

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