Wes Bos & Scott Tolinski - Full Stack JavaScript Web Developers

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689: You Should Be Using JavaScript Maps & Sets

Syntax - Tasty Web Development Treats

Full Stack Developers Wes Bos and Scott Tolinski dive deep into web development topics, explaining how they work and talking about their own experiences. They cover from JavaScript frameworks like React, to the latest advancements in CSS to simplifying web tooling.

In this episode of Syntax, Wes and Scott talk about why you should be using JavaScript maps sets, whether you can access them directly, what makes them great, and what weak versions of both are. <h3 class="code-line" data-line-start="2" data-line-end="3"><a id= "Show_Notes_2"></a>Show Notes</h3> <ul> <li class="has-line-data" data-line-start="4" data-line-end="5"> <a href="#t=00:26">00:26</a> Welcome</li> <li class="has-line-data" data-line-start="5" data-line-end="6"> <a href="#t=01:34">01:34</a> Syntax Brought to you by Sentry</li> <li class="has-line-data" data-line-start="6" data-line-end="7"> <a href="#t=01:54">01:54</a> What makes Maps a spicy buffalo object?</li> <li class="has-line-data" data-line-start="7" data-line-end="8"> <a href="#t=07:46">07:46</a> API of Map</li> <li class="has-line-data" data-line-start="8" data-line-end="9"> <a href="#t=08:51">08:51</a> Looping over items in a Map</li> <li class="has-line-data" data-line-start="9" data-line-end="10"> <a href="#t=09:27">09:27</a> Can you change the size of a map after it’s been created?</li> <li class="has-line-data" data-line-start="10" data-line-end="11"> <a href="#t=10:07">10:07</a> Can you access properties directly?</li> <li class="has-line-data" data-line-start="11" data-line-end="12"> <a href="#t=12:13">12:13</a> Where have we used a map as a cache?</li> <li class="has-line-data" data-line-start="12" data-line-end="13"> <a href="#t=13:32">13:32</a> What makes a set an array honey garlic array?</li> <li class="has-line-data" data-line-start="13" data-line-end="14"> <a href="#t=17:28">17:28</a> When should you be using sets instead of an array?</li> <li class="has-line-data" data-line-start="14" data-line-end="15"> <a href= "https://developer.mozilla.org/en-US/docs/Web/API/Highlight">Proposed Highlight API is built on Sets</a></li> <li class="has-line-data" data-line-start="15" data-line-end="16"> <a href="#t=21:47">21:47</a> Can you spread sets like an array?</li> <li class="has-line-data" data-line-start="16" data-line-end="17"> <a href="#t=22:40">22:40</a> Weak versions of map and set</li> <li class="has-line-data" data-line-start="17" data-line-end="19"> <a href= "https://github.com/wesbos/es6-articles/blob/master/66%20-%20WeakMap%20and%20Garbage%20Collection.md"> WeakMap and Garbage collection</a></li> </ul> <h3 class="code-line" data-line-start="19" data-line-end="20"> <a id="Hit_us_up_on_Socials_19"></a>Hit us up on Socials!</h3> Syntax: <a href="https://twitter.com/syntaxfm">X</a> <a href= "https://www.instagram.com/syntax_fm/">Instagram</a> <a href= "https://www.tiktok.com/@syntaxfm">Tiktok</a> <a href= "https://www.linkedin.com/company/96077407/admin/feed/posts/">LinkedIn</a> <a href="https://www.threads.net/@syntax_fm">Threads</a> Wes: <a href="https://twitter.com/wesbos">X</a> <a href= "https://www.instagram.com/wesbos/">Instagram</a> <a href= "https://www.tiktok.com/@wesbos">Tiktok</a> <a href= "https://www.linkedin.com/in/wesbos/">LinkedIn</a> <a href= "https://www.threads.net/@wesbos">Threads</a> Scott: <a href="https://twitter.com/stolinski">X</a> <a href= "https://www.instagram.com/stolinski/">Instagram</a> <a href= "https://www.tiktok.com/@stolinski">Tiktok</a> <a href= "https://www.linkedin.com/in/stolinski/">LinkedIn</a> <a href= "https://www.threads.net/@stolinski">Threads</a>

In this episode of Syntax, Wes and Scott talk about why you should be using JavaScript maps sets, whether you can access them directly, what makes them great, and what weak versions of both are.
 Show Notes  00:26 Welcome
 01:34 Syntax Brought to you by Sentry
 01:54 What makes Maps a spicy buffalo object?
 07:46 API of Map
 08:51 Looping over items in a Map
 09:27 Can you change the size of a map after it’s been created?
 10:07 Can you access properties directly?
 12:13 Where have we used a map as a cache?
 13:32 What makes a set an array honey garlic array?
 17:28 When should you be using sets instead of an array?
 Proposed Highlight API is built on Sets

 21:47 Can you spread sets like an array?
 22:40 Weak versions of map and set
  WeakMap and Garbage collection

  Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads
 Wes: X Instagram Tiktok LinkedIn Threads
 Scott: X Instagram Tiktok LinkedIn Threads

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689: You Should Be Using JavaScript Maps & Sets

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