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+---
+title: yearLeadingZero
+slug: Archive/Mozilla/XUL/Property/yearLeadingZero
+tags:
+  - XUL Properties
+  - XUL Reference
+translation_of: Archive/Mozilla/XUL/Property/yearLeadingZero
+---
+<div class="noinclude">
+  <span class="breadcrumbs XULRefProp_breadcrumbs">« <a href="/ja/docs/XUL_Reference" title="XUL_Reference">XUL リファレンス</a></span></div>
+<dl>
+  <dt>
+    <code><span><a href="https://developer.mozilla.org/ja/docs/XUL/Property/yearLeadingZero">yearLeadingZero</a></span></code></dt>
+  <dd>
+    型: <em>論理型</em></dd>
+  <dd>
+    日付の年の値が 1000 未満の年で、先頭にゼロを加えて 4 桁で表示すべきかどうかを示す、読取専用の値</dd>
+</dl>