N/file Module
File.getReader()
Method Description: Method used to return the reader object for performing special read operations
Returns: file.Reader
Supported Script Types: Server-side scripts For more information, see SuiteScript 2.0 Script Types.
Governance: None
Module: N/file Module
Since: 2019.1
Search NetSuite - https://system.netsuite.com/app/help/helpcenter.nl?search=File.getReader()

// Code Example 1

// Add additional code

//...

var reader = context.input.file.getReader();



var textUntilFirstComma = reader.readUntil(',');

   var next10Characters = reader.readChars(10);

   var textUntilNextNewLine = reader.readUntil('\n');

   var next100Characters = reader.readChars(100);



//...

// Add additional code



//SOURCE: https://system.netsuite.com/app/help/helpcenter.nl?fid=section_1543843814.html