op.not

op.not(
   booleanExpression as xs.boolean
) as booleanExpression

Summary

This function returns true if neither of the specified boolean expressions return true. Otherwise, it returns false.

Parameters
booleanExpression	Exactly one boolean expression. See Boolean Expression Functions for the list of functions used to build boolean expressions.

Example

const op = require('/MarkLogic/optic');
op.fromLiterals([
            {group:1, val:2},
            {group:1, val:4},
            {group:2, val:3},
            {group:2, val:5},
            {group:2, val:7}
            ])
          .where(op.not(op.eq(op.col('group'), 2)))
          .result();