Functional programming is a programming paradigm that emphasizes the use of pure functions and immutable data. JavaScript, being a multi-paradigm language, allows us to use functional programming concepts alongside other paradigms.

One common feature in JavaScript is the use of ternary operations, which is a concise way of writing conditional statements. Ternary operations can be used in functional programming to create more readable and concise code.

Let’s take a look at an example of using ternary operations in a functional programming paradigm in JavaScript:

const hasPermission = (user) =>
  user.isAdmin ? "Admin" : "User";

const showPermissions = (user) => {
  const permission = hasPermission(user);
  console.log(`User ${user.username} has ${permission} permission.`);
};

const user = {
  username: "John",
  isAdmin: true
};

showPermissions(user);

In the above example, we have two functions: hasPermission and showPermissions. The hasPermission function takes a user object as an argument and uses a ternary operation to determine the user’s permission. If the isAdmin property of the user object is true, it returns “Admin”, otherwise it returns “User”.

The showPermissions function takes a user object as an argument, calls the hasPermission function, and logs the user’s permission to the console.

By using ternary operations, we can write concise and readable code to handle conditional logic in a functional programming paradigm. It helps to avoid the use of traditional if-else statements, promoting immutability and avoiding side effects.

In conclusion, ternary operations can be used effectively in functional programming paradigms in JavaScript to write more concise and readable code. It allows us to handle conditional logic in a more functional and declarative way. However, like any programming technique, it is important to use ternary operations judiciously and consider the readability and maintainability of the code overall.

For more information on functional programming in JavaScript, you can check out the MDN Web Docs.

#JavaScript #FunctionalProgramming