ES6 Classes vs Functions: Which Should I Use?

What are the main differences between ES6 classes and functions in JavaScript?

ES6 classes provide a clearer syntax for creating objects and inheritance, while functions are more flexible and can be used in various ways.

Can you give me an example of how to create a class and a function?

Sure! Here's a simple class:

class Animal {
  constructor(name) {
    this.name = name;
  }
  speak() {
    console.log(`${this.name} makes a noise.`);
  }
}

And a function:

function Animal(name) {
  this.name = name;
}
Animal.prototype.speak = function() {
  console.log(`${this.name} makes a noise.`);
};

When should I use classes instead of functions?

Use classes when you need to create multiple instances with shared methods and properties, especially for complex applications.

Are there any performance differences between using classes and functions?

Generally, the performance difference is negligible for most applications. Focus on readability and maintainability.