deploy: bc19448

chapter3.html

@@ -246,7 +246,9 @@ <h2 id="simple-types"><a class="header" href="#simple-types">Simple Types</a></h
 [&quot;Functional Programming&quot;,&quot;JavaScript&quot;]
 </code></pre>
 <p>PureScript's functions correspond to JavaScript's functions. Functions can be defined at the top-level of a file by specifying arguments before the equals sign:</p>
-<pre><code class="language-haskell">add :: Int -&gt; Int -&gt; Int
+<pre><code class="language-haskell">import Prelude -- bring the (+) operator into scope
+
+add :: Int -&gt; Int -&gt; Int
 add x y = x + y
 </code></pre>
 <p>Alternatively, functions can be defined inline using a backslash character followed by a space-delimited list of argument names. To enter a multi-line declaration in PSCi, we can enter &quot;paste mode&quot; using the <code>:paste</code> command. In this mode, declarations are terminated using the <em>Control-D</em> key sequence:</p>

css/general.css

@@ -5,6 +5,7 @@
 :root {
     /* Browser default font-size is 16px, this way 1 rem = 10px */
     font-size: 62.5%;
+    color-scheme: var(--color-scheme);
 }
 
 html {

css/print.css

@@ -22,14 +22,6 @@
     overflow-y: initial;
 }
 
-code {
-    background-color: #666666;
-    border-radius: 5px;
-
-    /* Force background to be printed in Chrome */
-    -webkit-print-color-adjust: exact;
-}
-
 pre > .buttons {
     z-index: 2;
 }

css/variables.css

@@ -50,6 +50,8 @@
     --searchresults-border-color: #888;
     --searchresults-li-bg: #252932;
     --search-mark-bg: #e3b171;
+
+    --color-scheme: dark;
 }
 
 .coal {
@@ -90,6 +92,8 @@
     --searchresults-border-color: #98a3ad;
     --searchresults-li-bg: #2b2b2f;
     --search-mark-bg: #355c7d;
+
+    --color-scheme: dark;
 }
 
 .light {
@@ -130,6 +134,8 @@
     --searchresults-border-color: #888;
     --searchresults-li-bg: #e4f2fe;
     --search-mark-bg: #a2cff5;
+
+    --color-scheme: light;
 }
 
 .navy {
@@ -170,6 +176,8 @@
     --searchresults-border-color: #5c5c68;
     --searchresults-li-bg: #242430;
     --search-mark-bg: #a2cff5;
+
+    --color-scheme: dark;
 }
 
 .rust {
@@ -210,6 +218,8 @@
     --searchresults-border-color: #888;
     --searchresults-li-bg: #dec2a2;
     --search-mark-bg: #e69f67;
+
+    --color-scheme: light;
 }
 
 @media (prefers-color-scheme: dark) {

print.html

@@ -482,7 +482,9 @@ <h2 id="simple-types"><a class="header" href="#simple-types">Simple Types</a></h
 [&quot;Functional Programming&quot;,&quot;JavaScript&quot;]
 </code></pre>
 <p>PureScript's functions correspond to JavaScript's functions. Functions can be defined at the top-level of a file by specifying arguments before the equals sign:</p>
-<pre><code class="language-haskell">add :: Int -&gt; Int -&gt; Int
+<pre><code class="language-haskell">import Prelude -- bring the (+) operator into scope
+
+add :: Int -&gt; Int -&gt; Int
 add x y = x + y
 </code></pre>
 <p>Alternatively, functions can be defined inline using a backslash character followed by a space-delimited list of argument names. To enter a multi-line declaration in PSCi, we can enter &quot;paste mode&quot; using the <code>:paste</code> command. In this mode, declarations are terminated using the <em>Control-D</em> key sequence:</p>