N/query Module
Query.condition
Property Description: The simple or nested condition (a query.Condition object) that narrows the query results. The query.Condition object acts in the same capacity as the search.Filter object in the N/search Module. The primary difference is that query.Condition objects can contain other query.Condition objects. To create conditions: Use Query.createCondition(options) to create conditions for the initial query definition created with query.create(options). Use Component.createCondition(options) to create conditions for the join relationships created with Query.autoJoin(options) and Component.autoJoin(options). If you have multiple conditions, use them to create a new nested condition with the methods Query.and(conditions), Query.or(conditions), and Query.not(condition). Assign your simple or nested condition to Query.condition. For an example, see Syntax.
Type: query.Condition
Module: N/query Module
Parent Object: query.Query
Sibling Object Members: Query Object Members
Since: 2018.1
Search NetSuite - https://system.netsuite.com/app/help/helpcenter.nl?search=Query.condition

// Code Example 1

// Add additional code

//...

var myCustomerQuery = query.create({

    type: query.Type.CUSTOMER

});



var mySalesRepJoin = myCustomerQuery.autoJoin({

    fieldId: 'salesrep'

});



var myFirstCondition = myCustomerQuery.createCondition({

    fieldId: 'id',

    operator: query.Operator.EQUAL,

    values: 107

});



var mySecondCondition = myCustomerQuery.createCondition({

    fieldId: 'id',

    operator: query.Operator.EQUAL,

    values: 2647

});



var myThirdCondition = myCustomerQuery.createCondition({

    fieldId: 'email',

    operator: query.Operator.START_WITH_NOT,

    values: 'foo'

});



myCustomerQuery.condition = myCustomerQuery.and(

    myThirdCondition, myCustomerQuery.not(

        myCustomerQuery.or(myFirstCondition, mySecondCondition)

    )

);

//...

// Add additional code



//SOURCE: https://system.netsuite.com/app/help/helpcenter.nl?fid=section_1510781832.html