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authorPeter Bengtsson <mail@peterbe.com>2020-12-08 14:41:15 -0500
committerPeter Bengtsson <mail@peterbe.com>2020-12-08 14:41:15 -0500
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+---
+title: onload
+slug: Web/API/FileReader/onload
+tags:
+ - Dateien
+ - Lesen
+translation_of: Web/API/FileReader/onload
+---
+<p>Das onload Event wird ausgelöst, wenn der Inhalt von <a href="/en-US/docs/Web/API/FileReader/readAsArrayBuffer">readAsArrayBuffer</a>, <a href="/en-US/docs/Web/API/FileReader/readAsBinaryString">readAsBinaryString</a>, <a href="/en-US/docs/Web/API/FileReader/readAsDataURL">readAsDataURL</a> or <a href="/en-US/docs/Web/API/FileReader/readAsText">readAsText</a> verfügbar ist.</p>
+
+<h2 id="Beispiel">Beispiel</h2>
+
+<pre class="brush:js; line-numbers language-js"><code class="language-js">// Callback von einem &lt;input type="file" onchange="onChange(event)"&gt;
+function onChange(event) {
+ var file = event.target.files[0];
+ var reader = new FileReader();
+ reader.onload = function(event) {
+ // Hier wird der Text der Datei ausgegeben
+ console.log(event.target.result)
+ };
+
+ reader.readAsText(file);
+}
+</code></pre>