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+---
+title: PageTransitionEvent.persisted
+slug: Web/API/PageTransitionEvent/persisted
+translation_of: Web/API/PageTransitionEvent/persisted
+---
+<div>{{APIRef("HTML DOM")}}</div>
+
+<p>只读属性<code><strong>persisted</strong></code>代表一个页面是否从缓存中加载的</p>
+
+<h2 id="Syntax">Syntax</h2>
+
+<pre class="brush: js notranslate">window.addEventListener('pageshow', function(event) {
+  if (event.persisted) {
+    console.log('Page was loaded from cache.');
+  }
+});</pre>
+
+<h3 id="Value">Value</h3>
+
+<p>A {{jsxref("Boolean")}}.</p>
+
+<h2 id="Specifications">Specifications</h2>
+
+<table class="standard-table">
+ <thead>
+  <tr>
+   <th scope="col">Specification</th>
+   <th scope="col">Status</th>
+   <th scope="col">Comment</th>
+  </tr>
+ </thead>
+ <tbody>
+  <tr>
+   <td>{{SpecName('HTML WHATWG', '#dom-pagetransitionevent-persisted', 'PageTransitionEvent: persisted')}}</td>
+   <td>{{Spec2('HTML WHATWG')}}</td>
+   <td>Initial definition</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_compatibility">Browser compatibility</h2>
+
+
+
+<p>{{Compat("api.PageTransitionEvent.persisted")}}</p>