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---
title: 'Document: readystatechange event'
slug: Web/API/Document/readystatechange_event
translation_of: Web/API/Document/readystatechange_event
---
<div>{{APIRef}}</div>
<p><strong><code>readystatechange</code></strong> 이벤트는 현재 페이지의 {{domxref("Document.readyState", "readyState")}} 속성값이 변할 때 발생한다.</p>
<table class="properties">
<tbody>
<tr>
<th scope="row">Bubbles</th>
<td>No</td>
</tr>
<tr>
<th scope="row">Cancelable</th>
<td>No</td>
</tr>
<tr>
<th scope="row">Interface</th>
<td>{{domxref("Event")}}</td>
</tr>
<tr>
<th scope="row">Event handler property</th>
<td><code>onreadystatechange</code></td>
</tr>
</tbody>
</table>
<h2 id="Examples">Examples</h2>
<h3 id="Live_example">Live example</h3>
<h4 id="HTML">HTML</h4>
<pre class="brush: html"><div class="controls">
<button id="reload" type="button">Reload</button>
</div>
<div class="event-log">
<label>Event log:</label>
<textarea readonly class="event-log-contents" rows="8" cols="30"></textarea>
</div></pre>
<div class="hidden">
<h4 id="CSS">CSS</h4>
<pre class="brush: css">body {
display: grid;
grid-template-areas: "control log";
}
.controls {
grid-area: control;
display: flex;
align-items: center;
justify-content: center;
}
.event-log {
grid-area: log;
}
.event-log-contents {
resize: none;
}
label, button {
display: block;
}
#reload {
height: 2rem;
}
</pre>
</div>
<h4 id="JS">JS</h4>
<pre class="brush: js">const log = document.querySelector('.event-log-contents');
const reload = document.querySelector('#reload');
reload.addEventListener('click', () => {
log.textContent ='';
window.setTimeout(() => {
window.location.reload(true);
}, 200);
});
window.addEventListener('load', (event) => {
log.textContent = log.textContent + 'load\n';
});
document.addEventListener('readystatechange', (event) => {
log.textContent = log.textContent + `readystate: ${document.readyState}\n`;
});
document.addEventListener('DOMContentLoaded', (event) => {
log.textContent = log.textContent + `DOMContentLoaded\n`;
});
</pre>
<h4 id="Result">Result</h4>
<p>{{ EmbedLiveSample('Live_example', '100%', '160px') }}</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", "indices.html#event-readystatechange", "readystatechange")}}</td>
<td>{{Spec2("HTML WHATWG")}}</td>
<td></td>
</tr>
</tbody>
</table>
<h2 id="Browser_compatibility">Browser compatibility</h2>
<p>{{Compat("api.Document.readystatechange_event")}}</p>
<h2 id="See_also">See also</h2>
<ul>
<li>Related events: <code><a href="/en-US/docs/Web/API/Document/DOMContentLoaded_event">DOMContentLoaded</a></code>, <code><a href="/en-US/docs/Web/API/Window/load_event">load</a></code>, <code><a href="/en-US/docs/Web/API/Window/beforeunload_event">beforeunload</a></code>, <code><a href="/en-US/docs/Web/API/Window/unload_event">unload</a></code></li>
</ul>
|
