Summary  
The chapter explains the array includes method, which returns a boolean indicating whether a specified element is present in the array.

General domain of usage  
Inventory management

The `includes` method can be used to quickly determine of a specific element exists in the array or not.

Following is the **general syntax** of the includes method:
```
arrayName.includes(element);
```

The `includes` method returns a boolean (`true` or `false`) value based on whether or not the element exists in the array.
- **Returns** `true` if the element is found;
- **Returns** `false` if the element is not found.

let itemsInStock = ["Laptop", "Phone", "Tablet", "Charger"];

console.log(itemsInStock.includes("Phone"));
console.log(itemsInStock.includes("Headphones"));

The `includes` method performs a **strict comparison** (`===`), meaning it checks for exact matches, including case sensitivity. For example, `itemsInStock.includes("phone")` would return `false` because `"phone"` (lowercase) is not the same as `"Phone"` (uppercase **"P"**).

Note

What will be the output of the following code?

Which of the following statements is true about the `includes` method?

This streamlined course focuses on the essential JavaScript fundamentals for beginners. Learn about variables, data types, operators, control flow, functions, arrays, and introductory DOM manipulation through practical examples and challenges. Recap, redundant, and introductory chapters have been omitted for a focused learning experience.

The `includes` Method

1. What will be the output of the following code?

2. Which of the following statements is true about the `includes` method?

The `includes` Method

1. What will be the output of the following code?

2. Which of the following statements is true about the `includes` method?

The `includes` Method

1. What will be the output of the following code?

2. Which of the following statements is true about the includes method?

The `includes` Method

1. What will be the output of the following code?

2. Which of the following statements is true about the includes method?

2. Which of the following statements is true about the `includes` method?

2. Which of the following statements is true about the `includes` method?