The `break` keyword is a loop terminator, allowing you to exit a loop prematurely.

Example 1: Stopping an Infinite Loop

let i = 1;

while (true) {
  console.log("Iteration", i);
  i++;
  if (i > 5) {
    break;
  }
}

In this example, the `break` keyword stops the infinite `while` loop when `i` becomes equal to `6`, after the `i++` operation.

Example 2: Breaking a `for` Loop

let a = 0;

for (let i = 0; i < 10; i++) {
  a += i;
  console.log("a =", a);
  if (i > 3) {
    break;
  }
}

Here, the variable `a` is incremented by `i` during each iteration (0 + 1 + 2 + 3 + 4) until `i` becomes equal to 4. At that point, the `break` statement is triggered.
| `i = 0` | `a = 0 + 0` |
| :--- | :--- |
| `i = 1` | `a = 0 + 1` |
| `i = 2` | `a = 1 + 2` |
| `i = 3` | `a = 3 + 3` |
| `i = 4` | `a = 6 + 4`, `break` |

Example 3: Breaking a `while` Loop Immediately

while (true) {
  console.log("Iteration start");
  break;
  console.log("Iteration end"); // This line will not be executed
}

console.log("Loop was ended");

In this example, the `break` statement inside the `while` loop immediately terminates the loop, preventing any code below it from executing within the same block.

> Note
>
> Remember that the `break` statement is a powerful tool for controlling the flow of your loops, allowing you to exit them when specific conditions are met.

Our first section will introduce you to JavaScript and explore its syntax. This initial step will give you a fundamental understanding of JavaScript's syntax, setting the stage for more in-depth learning in subsequent sections.

We'll dive into the essential data types that JavaScript operates with. We'll begin by distinguishing between literals and variables and then explore the diverse range of data types used in JavaScript. This knowledge will form a solid foundation for your journey into JavaScript.

We're acquainted with the various data types. It's time to roll up our sleeves and learn how to manipulate them. In this third section, we'll explore the operations that can be performed with each data type, equipping you with practical skills to work effectively with JavaScript's data structures.

Delve into the art of controlling the flow of execution in JavaScript. It's a powerful skill that enables us to instruct the interpreter precisely on how to behave under various conditions. You'll gain the ability to orchestrate your code's behavior.

Uncover the code optimization through the use of loops. Loops allow us to streamline our code by performing repetitive actions efficiently. We'll delve into JavaScript's different types of loops and discover how to wield their power effectively. 

Unlock the potential of functions as essential tools for crafting simple yet powerful programs. You'll master creating and utilizing functions, empowering you to simplify your coding endeavors and enhance your problem-solving skills.

`i = 0`	`a = 0 + 0`
`i = 1`	`a = 0 + 1`
`i = 2`	`a = 1 + 2`
`i = 3`	`a = 3 + 3`
`i = 4`	`a = 6 + 4`, `break`

Introduction to JavaScript