Meta Frontend Developer Interview Questions with Expert Answers

Meta Frontend Developer Interview Questions with Expert Answers

Meta ranks among the largest American IT companies, alongside other Big Five corporations. In 2023, it was ranked #31 on the Forbes Global 2000 ranking. In 2022, Meta was the company with the third-highest expenditure on research and development worldwide, with R&D expenditures amounting to US$35.3 billion.

So if that excites you, let’s cover a few questions asked in the front-end interview round Meta.

Q1. For a recursive description of DOM elements define a function that prepares actual DOM elements.

Example input:

// Example usage
const dom = {
    type: 'div',
    props: { id: 'hello' },
    children: [
        { type: 'h1', children: ['HELLO'] }
    ]
};

In this question, we need to convert the above JSON object into actual DOM elements similar to how React converts its internal virtual DOM representation into actual DOM implementation.

Approach

Such problems can be effectively solved using a recursive approach. Coming up with a recursive solution is tricky so let’s break down the problem into smaller parts.

1. Understand the Structure
   Analyze the recursive object format. Each node can…