The ternary operator is a conditional operator that takes three (ternary) options. We can almost think of it as a concise if then statement.

The basic syntax is as follows.

Condition ? Value-If-True : Value-If-False

For an example

const isOver21 = age >= 21 ? "Is over 21" : "Is Under 21"

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Expressions_and_Operators#conditional_ternary_operator