What is the context in arrow functions in JavaScript?

Can you explain how context works in arrow functions in JavaScript?

Sure! In JavaScript, arrow functions do not have their own 'this' context. Instead, they inherit 'this' from the parent scope.

What does that mean for using 'this' inside an arrow function?

It means that if you use 'this' inside an arrow function, it refers to the 'this' value of the enclosing lexical context, not the function itself.

Can you give me an example of that?

Of course! Here's a simple example:

const obj = {
  value: 42,
  getValue: function() {
    return () => this.value;
  }
};

const getValue = obj.getValue();
console.log(getValue()); // Outputs: 42

In this case, the arrow function inherits 'this' from 'getValue', which refers to 'obj'.

What about regular functions? How do they handle 'this'?

Regular functions have their own 'this' context, which is determined by how they are called. If called as a method, 'this' refers to the object before the dot.