doc: prevent displaying empty version picker

Chris Young · BridgeAR · commit 2b7b9f24d9f3 · 2017-09-19T16:10:19.000-03:00
PR-URL: nodejs#15420 Fixes: nodejs#15396 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Refael Ackermann <refack@gmail.com> Reviewed-By: Evan Lucas <evanlucas@me.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
diff --git a/doc/api_assets/style.css b/doc/api_assets/style.css
@@ -91,6 +91,15 @@ em code {
 
 #gtoc li {
   display: inline;
+  border-right: 1px #000 solid;
+  margin-right: 0.4em;
+  padding-right: 0.4em;
+}
+
+#gtoc li:last-child {
+  border-right: none;
+  margin-right: 0;
+  padding-right: 0;
 }
 
 li.version-picker {
@@ -118,6 +127,8 @@ ol.version-picker {
 
 #gtoc ol.version-picker li {
   display: block;
+  border-right: 0;
+  margin-right: 0;
 }
 
 ol.version-picker li a {
diff --git a/doc/template.html b/doc/template.html
@@ -25,18 +25,15 @@ <h1>Node.js __VERSION__ Documentation</h1>
         <div id="gtoc">
           <ul>
             <li>
-              <a href="index.html" name="toc">Index</a> |
+              <a href="index.html" name="toc">Index</a>
             </li>
             <li>
-              <a href="all.html">View on single page</a> |
+              <a href="all.html">View on single page</a>
             </li>
             <li>
-              <a href="__FILENAME__.json">View as JSON</a> |
-            </li>
-            <li class="version-picker">
-              <a href="#">View another version <span>&#x25bc;</span></a>
-              __ALTDOCS__
+              <a href="__FILENAME__.json">View as JSON</a>
             </li>
+            __ALTDOCS__
           </ul>
         </div>
         <hr>
diff --git a/tools/doc/html.js b/tools/doc/html.js
@@ -232,9 +232,17 @@ function altDocs(filename) {
     return html + '</a></li>';
   }
 
-  const lis = (vs) => vs.filter(lte).map(li).join('\n');
+  const lis = versions.filter(lte).map(li).join('\n');
 
-  return `<ol class="version-picker">${lis(versions)}</ol>`;
+  if (!lis.length)
+    return '';
+
+  return `
+    <li class="version-picker">
+      <a href="#">View another version <span>&#x25bc;</span></a>
+      <ol class="version-picker">${lis}</ol>
+    </li>
+  `;
 }
 
 // handle general body-text replacements
