JS Practice — Built-in Objects

String.prototype.endsWith() — no match

📖 Usage Example

const str = 'Hello, World!'
str.endsWith('!')        // → true
str.endsWith('World')    // → false
str.endsWith('World', 12) // → true

Use endsWith() to check if a string ends with a specific suffix, with an optional end position.

String.prototype.endsWith() — No Match

Challenge: Implement hasExtension(filename, ext) that checks if a filename ends with the given extension.

hasExtension('photo.jpg', '.jpg') // → true
hasExtension('photo.png', '.jpg') // → false

💡 Hints (1)