Add Additional Logic
Explore how to add additional logic in JavaScript by mastering logical operators such as &&, ||, and !. Understand how to combine conditions to check ranges and exclusions, and learn about logical nullish assignment to write clearer, more effective code. This lesson helps you confidently manage complex conditional statements 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 ...