JavaScript Mastery from Zero to Hero - Prepare for Coding Interviews - Final Exercise Solution - Facebook Unfriend Funct

JavaScript Mastery from Zero to Hero - Prepare for Coding Interviews - Final Exercise Solution - Facebook Unfriend Funct

Assessment

Interactive Video

Information Technology (IT), Architecture

University

Hard

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The video tutorial guides viewers through creating a JavaScript function called 'unfriend' that dynamically removes a friend from a Facebook user's list. It begins with setting up the function and accessing the friends array. Initial attempts to remove friends using incorrect methods are discussed, followed by a more effective approach using 'indexOf' and 'splice'. The tutorial concludes with error handling to manage cases where a friend does not exist in the list.

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4 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

How does the function ensure that it dynamically removes the correct friend from the list?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the significance of using 'indexOf' in the 'unfriend' function?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

In what scenario would the 'unfriend' function return an error message?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

What happens if the 'unfriend' function is called with a name that does not exist in the friends list?

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