Seriously. Stop using the logical OR when you’re not writing boolean
JavaScript has a very flexible syntax; you can use the same syntactical expressions in various ways to accomplish different things; this is one of the benefits of programming in JavaScript.
Software developers (in any language) typically use the || operator when evaluating boolean expressions for truth. JavaScript developers can also use it in other ways.
Software often uses default values — also known as fallback values. If data does not exist, then a fallback value is used instead. Before ES2020, developers accomplished this using the logical OR operator.
outOf defaults to 5 if the argument is not provided
Notice how the above code uses the logical OR operator to fall back to 5 if outOf is null or undefined. The above code is a nicer way of writing:
Using an if-statement for providing a fallback value
