<h1 id="javascript-execution-context--how-js-works-behind-the-scenes">JavaScript Execution Context – How JS Works Behind The Scenes<a aria-hidden="true" class="anchor-heading icon-link" href="#javascript-execution-context--how-js-works-behind-the-scenes"></a></h1>
<p><a href="https://www.freecodecamp.org/news/execution-context-how-javascript-works-behind-the-scenes/">https://www.freecodecamp.org/news/execution-context-how-javascript-works-behind-the-scenes/</a></p>
<p>Before we dive in, here are some prerequisites to familiarize yourself with, because we'll use them often in this article.</p>
<ul>
<li><strong>JavaScript Engine</strong>: A JavaScript engine is simply a computer program that receives JavaScript source code and compiles it to the binary instructions (machine code) that a CPU can understand.</li>
</ul>
<h1 id="how-javascript-code-gets-executed">How JavaScript Code Gets Executed<a aria-hidden="true" class="anchor-heading icon-link" href="#how-javascript-code-gets-executed"></a></h1>
<p>...</p>
<p>The browser's JavaScript engine then creates a special environment to handle the transformation and execution of this JavaScript code. This environment is known as the <code>Execution Context</code>.</p>
<p>The Execution Context contains the code that's currently running, and everything that aids in its execution.</p>
<p>During the Execution Context run-time, the specific code gets parsed by a parser, the variables and functions are stored in memory, executable byte-code gets generated, and the code gets executed.</p>
<p>There are two kinds of Execution Context in JavaScript:</p>
<ul>
<li>Global Execution Context (GEC)</li>
<li>Function Execution Context (FEC)</li>
</ul>
<h2 id="global-execution-context-gec">Global Execution Context (GEC)<a aria-hidden="true" class="anchor-heading icon-link" href="#global-execution-context-gec"></a></h2>
<p>... WIP</p>
<hr>
<strong>Backlinks</strong>
<ul>
<li><a href="/notes/pc5x8fihvgy53vw9f9ws7vc">Reading List</a></li>
</ul>

JavaScript Execution Context – How JS Works Behind The Scenes


Hi there 👋. I'm a Front-end developer.

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> I've often described my motivation for building software to others using imagery: I like to go find a secluded beach, build a large, magnificent sand castle, and then walk away. Will anyone notice? Probably not. Will the waves eventually destroy it? Yep. Did I still get immense satisfaction? Absolutely.
>
> — [aliasxneo](https://news.ycombinator.com/item?id=41497113)

Simplicity, even if it sacrifices some ideal functionality has better survival characteristics than the-right-thing. — [The Rise of Worse is Better](https://www.dreamsongs.com/RiseOfWorseIsBetter.html)

> We love to see the process, not just the result. The imperfections in your work can be beautiful if they show your struggle for perfection, not a lack of care.
>
> — [ralphammer](https://ralphammer.com/is-perfection-boring/)

> [Roberto Blake was talking about making 100 crappy videos](https://www.youtube.com/watch?v=OnUBaQ1Sp_E) to get better over time. Putting in the reps and improving a little bit each time.
>
> Putting in the work without expecting any external reward at first (eg views, followers, likes, etc) will pay off in the long run. — [100 Scrappy Things](https://www.florin-pop.com/blog/100-scrappy-things/)

> A good match is a **structured** dance, where players aim to **score** while they are following well-defined **rules**. This **freedom within a structure** is what makes it fun.
>
> — [ralphammer](https://ralphammer.com/how-to-get-started/)

> “Motivation often comes after starting, not before. Action produces momentum.”
>
> — James Clear

> Focus is more about **not** keeping busy when you need to wait for something.  
> Eat the boredom for a minute.
>
> — [[life-tips#wodenokoto]]

> [4 minutes run hard enough to push heart rate to 90%, 3 minutes recover, repeat 4 times](https://news.ycombinator.com/item?id=34213181)
>
> - https://www.ntnu.edu/cerg/advice
> - [Get running with Couch to 5K](https://www.nhs.uk/live-well/exercise/running-and-aerobic-exercises/get-running-with-couch-to-5k/)

> [recommended routine - bodyweightfitness](https://www.reddit.com/r/bodyweightfitness/wiki/kb/recommended_routine/) - I Don't Have This Much Time!
>
> - Don't workout at all (saves anywhere from 20 to 60 minutes, but really, really, really, really, really, really, really, really, really not recommended)

> [Just 4 pages a day. It really adds up.](https://news.ycombinator.com/item?id=34779980)

> I think it should be everyone's primary focus to sleep well, drink water, get outside, get active, and eat generally decently. I hate to say it, but if you're not eating a good amount of vegetables and fruit, decent protein, sleep, etc, no amount of XYZ will catch up to that detriment.
>
> — [CE02](https://news.ycombinator.com/item?id=35056071)

> Before leaving for the day I leave a comment in code: I’m working on this, need to do A, B C… to get it working.
>
> — [makz](https://news.ycombinator.com/item?id=40744916)

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## What I read in past

- [[What I read in 2024|journal.what-i-read-in]]
  - [[2023|journal.what-i-read-in.2023]]
  - [[2022|journal.what-i-read-in.2022]]
- 📝 [Gists](https://gist.github.com/Luke-SNAW)
- 📜 [Journals](https://luke-snaw.github.io/Luke-SNAW__netlify-CMS.github.io/)

---

- [[journal.what-i-struggled-brag-in]]
