<h1 id="prescreen"><a aria-hidden="true" class="anchor-heading icon-link" href="#prescreen"></a>Prescreen</h1>
<ul>
<li>What is the difference b/w <code>const</code>, <code>let</code> and <code>var</code>?
<ul>
<li><code>const</code> is immutable. <code>var</code> is hoisted. <code>let</code> is scoped.</li>
</ul>
</li>
<li>Explain prototypical inheritance</li>
<li>What does <code>this</code> mean in JavaScript?</li>
<li>What is the data structure of the DOM?
<ul>
<li>Tree</li>
</ul>
</li>
<li>What is a Stack and a Queue? How would you create those data structures in JavaScript?</li>
<li>How can you tell if an image element is loaded on a page?
<ul>
<li>onload</li>
</ul>
</li>
<li>What is <code>call()</code> and <code>apply()</code>?
<ul>
<li>Ways of changing scope of a function.</li>
</ul>
</li>
<li>What is event delegation and what are the performance tradeoffs?</li>
<li>What is a Worker? When would you use one?
<ul>
<li>Used to offload computationally expensive tasks.</li>
</ul>
</li>
</ul>
<hr>
<strong>Backlinks</strong>
<ul>
<li><a href="/notes/uiu5yxclsykkzsvhrf0k427">Interview Questions</a></li>
</ul>

Prescreen

dendron_notes


### Welcome To My Dev Log

As-salamu alaykum, My name is **[Aadam](https://aadam.dev)** and you've stumbled upon my `DevLog` which is kind of like a [digital garden](https://maggieappleton.com/garden-history) but for technical notes. These notes are mostly written for myself but I’m sharing them publicly. If a note seems confusing or under-explained, it’s probably because I didn't write it for you!

👋 Aadam ([email](mailto:aadimator@gmail.com), [Twitter](https://twitter.com/aadimator), [main personal site](https://aadimator.com))

There’s no real hierarchy to explore this site effectively. Just use the **Search Bar** and links within different notes to traverse this site.

## Interests

- [[s.l.js]]
- [[s.fnl.angular]]
- [[s.db.mongodb]]
- [[s.l.js.node]]

If you have any suggestions or comments, you can ping me on [🐦 Twitter](https://twitter.com/aadimator).
