Your Courses All Courses
Write an Expression Using the Link() Function

Write an Expression Using the Link() Function

Link() ensures that expressions with null values evaluate. Learn about this essential function in this challenge.

rate limit

Code not recognized.

About this course

In this challenge, create trigger logic to replace a null value using the LINK() function. 

You have a lot of latitude here as to how you approach this challenge. The simplest version might just add two variables—one null—to one another. Use your imagination and think about when you might use this in your operations.

Curriculum3 min

  • Challenge Overview 1 min
  • Answer Key 2 min

About this course

In this challenge, create trigger logic to replace a null value using the LINK() function. 

You have a lot of latitude here as to how you approach this challenge. The simplest version might just add two variables—one null—to one another. Use your imagination and think about when you might use this in your operations.

Curriculum3 min

  • Challenge Overview 1 min
  • Answer Key 2 min