N/util Module in SuiteScript: Type...

The N/util module allows SuiteScript 2.x developers to access various methods designed to verify object and primitive types. These methods can also be accessed via the global util object, which facilitates type checking throughout your scripts. This capability is essential for ensuring data integrity and type correctness in your applications.

Available Methods

The following table outlines the N/util module methods, their return types, supported script types, and descriptions:

Name	Return Type	Supported Script Types	Description
`util.each(iterable, callback)`	Object or Array	Client and server scripts	Iterates over each member in an object or array.
`util.extend(receiver, contributor)`	Object	Client and server scripts	Copies the properties in a source object to a destination object.
`util.isArray(obj)`	boolean	Client and server scripts	Returns `true` if `obj` is a JavaScript Array object, otherwise `false`.
`util.isAsyncFunction(obj)`	boolean	Client and server scripts	Returns `true` if `obj` is a JavaScript Async Function, otherwise `false`.
`util.isBoolean(obj)`	boolean	Client and server scripts	Returns `true` if `obj` is a JavaScript Boolean, otherwise `false`.
`util.isDate(obj)`	boolean	Client and server scripts	Returns `true` if `obj` is a JavaScript Date object, otherwise `false`.
`util.isFunction(obj)`	boolean	Client and server scripts	Returns `true` if `obj` is a JavaScript Function or Async Function, otherwise `false`.
`util.isNumber(obj)`	boolean	Client and server scripts	Returns `true` if `obj` is a JavaScript Number object or evaluates to a Number object, otherwise `false`.
`util.isObject(obj)`	boolean	Client and server scripts	Returns `true` if `obj` is a plain JavaScript object, otherwise `false`.
`util.isRegExp(obj)`	boolean	Client and server scripts	Returns `true` if `obj` is a JavaScript Regular Expression object, otherwise `false`.
`util.isString(obj)`	boolean	Client and server scripts	Returns `true` if `obj` is a JavaScript String object, otherwise `false`.

Practical Use Case

To illustrate how to utilize the N/util methods, consider the following example, which demonstrates how to use the util.each method to set fields on a sales order record:

suitescript

1/**
2 * @NApiVersion 2.x
3 */
4 
5require(['N/record', 'N/util'], function(record, util){
6    // Create a sales order
7    var rec = record.create({
8        type: 'salesorder', 
9        isDynamic: true
10    });
11    rec.setValue({
12        fieldId: 'entity',
13        value: 107
14    });
15 
16    // Set up an object containing an item’s internal ID and the corresponding quantity
17    var itemList = {
18        39: 5, 
19        38: 1
20    }
21 
22    // Iterate through the object and set the key-value pairs on the record
23    util.each(itemList, function(quantity, itemId){     // (5, 39) and (1, 38)
24        rec.selectNewLine('item');
25        rec.setCurrentSublistValue('item','item',itemId);
26        rec.setCurrentSublistValue('item','quantity',quantity);
27        rec.commitLine('item');
28    });
29 
30    var id = rec.save();
31});

In this example, the script creates a sales order and sets item quantities dynamically using the util.each method to iterate over an itemList object.

Who This Affects

Administrators: Manage script deployments and ensure correct usage of the N/util module in scripts.
Developers: Implement the N/util module methods to enhance type verification in SuiteScript scripts.

Key Takeaways

The N/util module is essential for type checking in SuiteScript 2.x.
It enables effective iteration over objects and arrays with its each method.
Developers can utilize various utility methods to verify data types, promoting script reliability and correctness.

Source: This article is based on Oracle's official NetSuite documentation.

Frequently Asked Questions (4)

Can the type verification methods in the N/util module be used in both client and server scripts?

Yes, all methods in the N/util module, including type verification, can be used in client and server scripts.

What does the util.isArray method return when checking if an object is a JavaScript Array?

The util.isArray method returns true if the object is a JavaScript Array, otherwise it returns false.

How can I iterate over an object or array in SuiteScript using the N/util module?

You can use the util.each method to iterate over each member of an object or array, applying a callback function to each item.

Are the type verification methods in the N/util module supported in SuiteScript 1.0?

The N/util module methods, including type verification, are specific to SuiteScript 2.x and are not available in SuiteScript 1.0.

N/util Module in SuiteScript: Type Verification Methods

Available Methods

Practical Use Case

Who This Affects

Key Takeaways

Frequently Asked Questions (4)

More in Platform