JavaScript String endsWith() Method

The JavaScript str.endsWith() method is used to check whether the given string ends with the characters of the specified string or not

Syntax:

str.endsWith(searchString, length)

Parameters: 

• searchString: The searchString is a string of characters that is to be searched at the end of the given string. 
• length: The length determines the length of the given string from the beginning to be searched for the search string

Return value:

• This function returns the Boolean value true if the searchString is found else it returns the Boolean value false

Example 1: Below is an example of the String endsWith() Method Method.

function func() {

    // Original string
    let str = 'Geeks for Geeks';

    // Finding the search string in the
    // given string
    let value = str.endsWith('for', 9);
    console.log(value);
}
func();

true

Example 2: In this example, the function endsWith() checks for searchString at the end of the given string. Since the searchString is found at the end, therefore this function returns true.

function func() {

    // Original string
    let str = 'It is a great day.';

    // Finding the search string in the
    // given string
    let value = str.endsWith('day.');
    console.log(value);
}
func();

true

Example 3: In this example, the function endsWith() checks for searchString at the end of the given string. Since the searchString is not found at the end, therefore this function returns false

function func() {

    // Original string
    let str = 'It is a great day.';

    // Finding the search string in the
    // given string
    let value = str.endsWith('great');
    console.log(value);
}

func();

false

Example 4: In this example, the function endsWith() checks for searchString at the end of the given string. Since the second argument defines the end of the string at index 13 and at this index searchString is found to end, therefore this function returns true.

function func() {

    // Original string
    let str = 'It is a great day.';

    // Finding the search string in the
    // given string
    let value = str.endsWith('great', 13);
    console.log(value);
}
func();

true

Supported Browsers: 

• Chrome 41
• Edge 12
• Firefox 17
• Opera 28
• Safari 9

JavaScript String endsWith() Method – FAQs

What does the endsWith() method do in JavaScript?

The endsWith() method determines whether a string ends with the characters of a specified substring. It returns true if the string ends with the specified characters, and false otherwise.

Can endsWith() be case-sensitive?

Yes, the endsWith() method is case-sensitive. It differentiates between uppercase and lowercase characters, so “Hello”.endsWith(“hello”) will return false.

What happens if the optional length parameter is used in endsWith()?

When the length parameter is provided, the method considers the string up to that length for checking the specified substring. It acts as if the string were truncated to that length.

How does endsWith() handle empty strings?

If searchString is an empty string, endsWith() will return true for any string because every string ends with an empty substring.

Can endsWith() be used with non-string data types?

The endsWith() method is specifically designed for strings. If used on non-string data types, the method will first convert them to strings before performing the operation.

We have a complete list of Javascript string methods, to check those please go through this Javascript String Complete reference article.

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