Introduction
In this lab, we will explore the concept of value in JavaScript and how to check if a specified value is undefined. This lab will give you hands-on experience in writing code to determine the presence of undefined values using the strict equality operator. By the end of this lab, you will have a solid understanding of how to use the isUndefined() function to check for undefined values in your JavaScript programs.
Skills Graph
%%%%{init: {'theme':'neutral'}}%%%%
flowchart RL
javascript(("`JavaScript`")) -.-> javascript/BasicConceptsGroup(["`Basic Concepts`"])
javascript/BasicConceptsGroup -.-> javascript/variables("`Variables`")
javascript/BasicConceptsGroup -.-> javascript/data_types("`Data Types`")
javascript/BasicConceptsGroup -.-> javascript/arith_ops("`Arithmetic Operators`")
javascript/BasicConceptsGroup -.-> javascript/comp_ops("`Comparison Operators`")
subgraph Lab Skills
javascript/variables -.-> lab-28447{{"`Value Is Undefined`"}}
javascript/data_types -.-> lab-28447{{"`Value Is Undefined`"}}
javascript/arith_ops -.-> lab-28447{{"`Value Is Undefined`"}}
javascript/comp_ops -.-> lab-28447{{"`Value Is Undefined`"}}
end
