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authorbt <bt@btxx.org>2024-06-08 13:22:19 -0400
committerbt <bt@btxx.org>2024-06-08 13:22:19 -0400
commitdcfb172704f3afb68a30425029ec834be2883274 (patch)
tree02ac480745db802d7af03f3213a0c568322170e3 /build/obvious-js-injection-fallback
parente146f8a64c793c337999ce316b16ebe5fe6f2dab (diff)
More content porting, on-going markdown changes for lowdown support
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<!doctype html>
-<html lang="en" id="top">
+<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="icon" href="data:,">
<title>Obvious Javascript 'Injection' Fallback</title>
- <link href="https://bt.ht/atom.xml" type="application/atom+xml" rel="alternate" title="Atom feed for blog posts" />
- <style>*{box-sizing:border-box;}body{font-family:sans-serif;margin:0 auto;max-width:650px;padding:1rem;}img{max-width:100%;}pre{overflow:auto;}table{text-align:left;width:100%;}</style>
+ <link href="/atom.xml" type="application/atom+xml" rel="alternate" title="Atom feed for blog posts" />
+ <link href="/rss.xml" type="application/rss+xml" rel="alternate" title="RSS feed for blog posts" />
+<style>*{box-sizing:border-box;}body{font-family:sans-serif;line-height:1.33;margin:0 auto;max-width:650px;padding:1rem;}img{max-width:100%;}pre{border:1px solid;overflow:auto;padding:5px;}table{text-align:left;width:100%;}.footnotes{font-size:90%;}</style>
</head>
<nav>
- <a href="#menu">Menu &darr;</a>
+ <a href="#menu">Menu &darr;</a>
</nav>
<main>
-<h1>Obvious Javascript 'Injection' Fallback</h1>
+<h1 id="obvious-javascript-injection-fallback">Obvious Javascript &#8216;Injection&#8217; Fallback</h1>
+
<p>2020-12-04</p>
-<p>Sometimes websites and web apps might require content to be "injected" via Javascript. I should mention that I am strongly against this practice - but often this kind of thing is out of one's hands. So, the least I can do is setup these "injections" to have proper fallbacks for users who disable JS. You would be surprised how many developers build <em>empty</em> HTML elements with the assumption they will be filled via Javascript.</p>
-<h2>Our Hypothetical Project</h2>
-<p>Let's pretend that we have a total tally that pulls in the number of current users using our fake SaaS app. We would do something like this:</p>
-<h3>HTML</h3>
+
+<p>Sometimes websites and web apps might require content to be &#8220;injected&#8221; via Javascript. I should mention that I am strongly against this practice - but often this kind of thing is out of one&#8217;s hands. So, the least I can do is setup these &#8220;injections&#8221; to have proper fallbacks for users who disable JS. You would be surprised how many developers build <em>empty</em> HTML elements with the assumption they will be filled via Javascript.</p>
+
+<h2 id="our-hypothetical-project">Our Hypothetical Project</h2>
+
+<p>Let&#8217;s pretend that we have a total tally that pulls in the number of current users using our fake SaaS app. We would do something like this:</p>
+
+<h3 id="html">HTML</h3>
+
<p>Here we create an empty <code>h2</code> tag that will update with the current number of users via js:</p>
-<pre><code>&lt;main&gt;
- &lt;h2 class=&quot;total-tally&quot;&gt;&lt;/h2&gt;
-&lt;/main&gt;
+
+<pre><code>&#60;main&#62;
+ &#60;h2 class="total-tally"&#62;&#60;&#47;h2&#62;
+&#60;&#47;main&#62;
</code></pre>
-<h3>Javascript</h3>
-<p>You'll have to use your imagination here and assume that the <code>totalTally</code> variable pulls in the numbers dynamically via API:</p>
-<pre><code>var totalTally = &quot;273,677&quot; /* This would pull something dynamically in prod */
-document.getElementsByClassName(&quot;total-tally&quot;)[0].innerHTML=totalTally;
+
+<h3 id="javascript">Javascript</h3>
+
+<p>You&#8217;ll have to use your imagination here and assume that the <code>totalTally</code> variable pulls in the numbers dynamically via API:</p>
+
+<pre><code>var totalTally = "273,677" &#47;* This would pull something dynamically in prod *&#47;
+document.getElementsByClassName("total-tally")[0].innerHTML=totalTally;
</code></pre>
-<h2>The Problem</h2>
-<p>The big issue we have now occurs when a user visits this page without JS enabled. The <code>h2</code> tag will remain empty and they won't see anything. I know this seems like a very avoidable issue, but you would be surprised how often it actually happens on the web.</p>
-<h2>The (overly simple) Solution</h2>
+
+<h2 id="the-problem">The Problem</h2>
+
+<p>The big issue we have now occurs when a user visits this page without JS enabled. The <code>h2</code> tag will remain empty and they won&#8217;t see anything. I know this seems like a very avoidable issue, but you would be surprised how often it actually happens on the web.</p>
+
+<h2 id="the-overly-simple-solution">The (overly simple) Solution</h2>
+
<p>The easiest way to avoid these types of empty tags - add static content. I know - mind blowing, right?</p>
-<h3>HTML (updated)</h3>
-<pre><code>&lt;main&gt;
- &lt;h2 class=&quot;total-tally&quot;&gt;200,000+&lt;/h2&gt;
-&lt;/main&gt;
+
+<h3 id="html-updated">HTML (updated)</h3>
+
+<pre><code>&#60;main&#62;
+ &#60;h2 class="total-tally"&#62;200,000+&#60;&#47;h2&#62;
+&#60;&#47;main&#62;
</code></pre>
-<p>You might be reading this and saying to yourself, "Wow! Thanks Captain Obvious!" and that's a fair reaction. This is an <em>obvious</em> demo on purpose. If even one single reader learns to avoid leaving empty HTML tags that are solely dependent on Javascript injection, then I'd say this demo was a huge success.</p>
-<p>Rule of thumb: don't make assumption about your users. Play it safe.</p>
+
+<p>You might be reading this and saying to yourself, &#8220;Wow! Thanks Captain Obvious!&#8221; and that&#8217;s a fair reaction. This is an <em>obvious</em> demo on purpose. If even one single reader learns to avoid leaving empty HTML tags that are solely dependent on Javascript injection, then I&#8217;d say this demo was a huge success.</p>
+
+<p>Rule of thumb: don&#8217;t make assumption about your users. Play it safe.</p>
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