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Javascript

2 years ago

In your experience, how do you craft a JavaScript map() function that alters each array element using a provided callback?

Frontend Engineer

TikTok

King

Lyft

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2 years ago

Coding

2 years ago

Can you outline the steps to create a useEffectOnce() hook in React that initiates an effect only a single time?

Frontend Engineer

TikTok

Braintree

WeWork

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2 years ago

Behavioral

2 years ago

What have you learned from a recent failure? How has this failure helped you to become a better Frontend Engineer?

Frontend Engineer

TikTok

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2 years ago

DOM Manipulation

2 years ago

What is the purpose of the Document Object Model (DOM) in web development, and why is it indispensable?

Frontend Engineer

TikTok

CCP Games

Amazon Web Services

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2 years ago

Coding

2 years ago

How do you plan to modify an array so that each element becomes the product of the next two elements in the array?

Frontend Engineer

TikTok

Kabam

Electronic Arts

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2 years ago

Javascript

2 years ago

How would you construct the getElementsByStyle function in JavaScript for identifying DOM elements by their CSS style, and what method would you use to traverse the DOM?

Frontend Engineer

TikTok

HCL Technologies

Creative Assembly

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2 years ago

Frontend System Design

2 years ago

How do you plan to implement a button that creates another button on click, with each button capable of the same and showing its click tally?

Frontend Engineer

TikTok

Indeed.com

Amazon

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2 years ago

Behavioral

2 years ago

Describe a conflict you dealt with.

Frontend EngineerTechnical Program ManagerSoftware EngineerProduct Manager

TikTok

Jabil Circuit

Zola

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2 years ago

Behavioral

2 years ago

Which skills make you an ideal candidate?

Frontend EngineerData Science ManagerEngineering ManagerUX Designer

TikTok

JP Morgan

ServiceNow

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2 years ago

Javascript

2 years ago

What methodology would you apply in JavaScript to enhance performance and caching when retrieving feature flags from an API?

Frontend Engineer

TikTok

Wargaming.net

Capcom

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2 years ago

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TikTok

Frontend Engineer

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System Design

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^*All interview questions are submitted by recent TikTok Frontend Engineer candidates, labelled and categorized by Prepfully, and then published after being verified by Frontend Engineers at TikTok.

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Frontend Engineer

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