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UiPath UiADPv1: What is the correct way to use LINQ for data processing in UiPath project?

By: Author Alex Lim

Posted on  - Last updated:

Categories Exam

Learn the proper application of LINQ for data manipulation in UiPath projects. Discover how to find the sum of integers, filter emails, convert DataTables to JSON, and identify the longest string using LINQ queries.

Table of Contents

Question

Which of the following statements correctly illustrates using LINQ to process data in a UiPath project?

A. Utilizing LINQ to find the total sum of integers in a list by writing listOfIntegers.Sum(Function(x) x).
B. Applying LINQ to filter out emails in a list of strings containing multiple email addresses by writing listOfStrings.FilterEmails().ToList().
C. Employing LINQ to convert DataTable to JSON format by writing dataTable.ToJSON().
D. Using LINQ to identify the longest string in a list of strings by writing listOfStrings.Max(Function(x)x.Length()).

Answer

A. Utilizing LINQ to find the total sum of integers in a list by writing listOfIntegers.Sum(Function(x) x).

Explanation

LINQ (Language Integrated Query) is a powerful tool in UiPath that allows developers to perform various data manipulation operations, such as filtering, sorting, and aggregating data. In this specific scenario, the Sum() method is used to calculate the total sum of all integers within the listOfIntegers collection.

Here’s how the LINQ query works:

  1. listOfIntegers represents the collection of integers to be processed.
  2. The Sum() method is called on the listOfIntegers collection.
  3. Inside the Sum() method, a lambda expression Function(x) x is used to specify the selector function.
  4. The selector function takes each element x from the listOfIntegers collection and returns the element itself (x).
  5. The Sum() method then computes the sum of all the selected elements and returns the result.

The other options are incorrect for the following reasons:

  • Option B uses a non-existent LINQ method called FilterEmails(). LINQ does not have a built-in method specifically for filtering emails.
  • Option C suggests using a non-existent LINQ method called ToJSON() to convert a DataTable to JSON format. LINQ itself does not provide a direct method for JSON conversion.
  • Option D uses the Max() method to find the longest string in a list of strings. While the Max() method is a valid LINQ method, the selector function Function(x) x.Length() incorrectly uses parentheses after x.Length. The correct syntax would be listOfStrings.Max(Function(x) x.Length).

In summary, option A correctly demonstrates the usage of LINQ in a UiPath project to calculate the sum of integers in a list using the Sum() method and a lambda expression as the selector function.

UiPath UiADPv1 certification exam assessment practice question and answer (Q&A) dump including multiple choice questions (MCQ) and objective type questions, with detail explanation and reference available free, helpful to pass the UiPath UiADPv1 exam and earn UiPath UiADPv1 certification.