JavaScript Includes() Method.

In this blog post you’ll learn the JavaScript includes() method. Method to check if specified string contains in a string or not.

Description:

includes() method returns true if the given string or value found in string otherwise it returns false.

Includes() Method is case sensitive.

Syntax:

JavaScript

string.includes(Searchvalue, start)  

Parameter Description:

Searchvalue: The value to search in string. (Required)

start: Index position to start searching from. Default is 0 (Optional)

Example 1: Check the specific words present in string or not.

Includes() method returns true if the given word present in string otherwise return false.

JavaScript

    let text = "Hello Good morning!. Welcome to maketechstuff.com";
    document.write(fruit_array.includes("Good"));
    // Output:
    // true  

Searching from a different position (Index position).

JavaScript

    let text = "Hello Good morning!. Welcome to maketechstuff.com";
    document.write(text.includes("Good", 10));
    // Output:
    // false  

Example 2: Check for specific array elements in array.

You can check the presence of specific array element in array using includes() method.

JavaScript

    let fruit_array = ["Mango", "Orange", "Banana", "Apple", "Guava", "Grapes"];
    document.write(fruit_array.includes("Orange"));
    // Output:
    // true  

So that's how JavaScript includes() method works. If you have any query or suggestion feel free to write them in the comment section.