JavaScript (ES2026) reference · String Methods

JavaScript String endsWith() Method

Return true if the string ends with the given text. Case-sensitive; an optional length treats the string as shorter.

JavaScript (ES2026) Since ES2015

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Syntax

string.endsWith(searchString, endPosition)

Parameter	Description
`searchString`	Text to look for.
`endPosition` optional	Treat the string as this long.

true or false.

Check a file extensionTry it yourself

const file = "photo.JPG";
console.log(file.endsWith(".jpg"), file.toLowerCase().endsWith(".jpg"));

Output

false true

With an end positionTry it yourself

console.log("Hello world".endsWith("Hello", 5));

Output

true

Version	Change
JavaScript ES2015	Added

string.startsWith() · Return true if the string begins with the given text. Case-sensitive; an optional position starts the check later.
string.includes() · Return true if the string contains the given text anywhere. Case-sensitive.
JavaScript Strings · tutorial
JavaScript String Methods · tutorial