Add Additional Logic
Explore how to implement additional logic in JavaScript by mastering the use of logical operators such as AND (&&), OR (||), and NOT (!). Understand how to combine conditions properly to create complex expressions, including the use of the logical nullish assignment operator (??=). This lesson helps you build reliable and bug-free conditions in your JavaScript programs.
We'll cover the following...
We'll cover the following...
“And” operator
Suppose you want to check if a number is between 0 and 100. You’re essentially checking if it’s “greater than or equal to 0” and “less than or equal to 100”. Both sub-conditions must be satisfied at the same time.
The expression
0 <= number <= 100is correct from a mathematical point of view but cannot be written in JavaScript (neither in ...