JavaScript Functions

Arrow functions are the modern, streamlined way to write functions. They're called "arrow" functions because they use => which looks like an arrow!

Basic syntax:

const functionName = (parameters) => {
  // Instructions
};

The magic of arrow functions:

• •Shorter and cleaner to write
• •Perfect for simple operations
• •Can be even shorter for one-line functions

Three ways to write them:

const add = (a, b) => {
  const sum = a + b;
  return sum;

};
2. Shorter (one expression):
const add = (a, b) => {
  return a + b;
};
3. Shortest (implicit return):
const add = (a, b) => a + b;

When to use arrow functions:

• •For simple calculations
• •When passing functions as arguments
• •In modern JavaScript code
• •When you want cleaner, more readable code

One limitation: Arrow functions can't be used with 'new' keyword (don't worry about this for now!)