NeedsExample component improvement

We don't display the NeedsExample component if examples aren't required (e.g., on element pages — even though the CodeExampleSection component is present, examples aren't mandatory).

Author: FileEX

web/src/components/CodeExamplesSection.astro

@@ -12,9 +12,14 @@ export interface CodeExample {
 
 export interface Props {
   codeExamples: CodeExample[];
+  examplesRequired?: boolean;
 }
 
-const { codeExamples } = Astro.props;
+const { codeExamples, examplesRequired } = Astro.props;
+
+if (codeExamples.length === 0 && !examplesRequired) {
+  return null;
+}
 ---
 
 <div class="examples-section">

web/src/pages/[func].astro

@@ -189,7 +189,7 @@ let funcSyntaxes = parseFunctionSyntaxes(func.id, func.data);
             </div>
         ))}
 
-        <CodeExamplesSection codeExamples={funcExamples} />
+        <CodeExamplesSection codeExamples={funcExamples}, examplesRequired={true} />
 
         <ChangelogList entries={changelogEntries} />