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Javascript

a year ago

How would you go about coding a custom map() function in JavaScript that applies a callback to each array element?

Frontend Engineer

Plarium

King

Lyft

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a year ago

Javascript

a year ago

How do you code the produce() function in Immer for immutable state management?

Frontend Engineer

Plarium

WeWork

Playdemic

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a year ago

Javascript

2 years ago

What technique would you adopt to develop custom implementations of the Array.prototype methods like flat, map, reduce, and concat in JavaScript?

Frontend Engineer

Plarium

Square

Dropbox

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2 years ago

Coding

2 years ago

How do you propose to design a React component for phone number input that actively validates and formats the numbers?

Frontend Engineer

Plarium

Ubisoft

Epson

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2 years ago

Javascript

2 years ago

What steps would you follow in implementing undefinedToNull(), ensuring undefined values in an object become null?

Frontend Engineer

Plarium

NortonLifeLock

Mailchimp

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2 years ago

Javascript

2 years ago

Can you describe a way to process an array of promises sequentially?

Frontend Engineer

Plarium

Gamigo

Mailchimp

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2 years ago

Javascript

2 years ago

In JavaScript, how would you write a counter object that has the functionality to increment, decrement, and reset its tally?

Frontend Engineer

Plarium

Tencent Games

Supercell

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2 years ago

Javascript

2 years ago

How do you plan to implement a JavaScript function that sorts strings in an array lexicographically?

Frontend Engineer

Plarium

Salesforce

Epic Games

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2 years ago

Coding

2 years ago

Could you show me how to write a useFocus() hook in React that enables automatic focus on a specified element?

Frontend Engineer

Plarium

Apple

GREE

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2 years ago

Coding

2 years ago

How do you plan to code the useClickOutside() hook in React, enabling detection of clicks outside a given element?

Frontend Engineer

Plarium

GungHo Online Entertainment

Agoda

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2 years ago

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Showing 21 to 30 of 68 results

^*All interview questions are submitted by recent Plarium candidates, labelled and categorized by Prepfully, and then published after verification by current and ex-Plarium employees.