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+---
+title: 'RangeError: repeat count must be non-negative'
+slug: Web/JavaScript/Reference/Errors/Negative_repetition_count
+tags:
+  - Errors
+  - JavaScript
+  - RangeError
+translation_of: Web/JavaScript/Reference/Errors/Negative_repetition_count
+---
+<div>{{jsSidebar("Errors")}}</div>
+
+<h2 id="Pesan">Pesan</h2>
+
+<pre class="syntaxbox">RangeError: argument out of range
+RangeError: repeat count must be non-negative (Firefox)
+RangeError: Invalid count value (Chrome)
+</pre>
+
+<h2 id="Tipe_error">Tipe error</h2>
+
+<p>{{jsxref("RangeError")}}</p>
+
+<h2 id="Apa_yang_salah">Apa yang salah?</h2>
+
+<p>Metode {{jsxref("String.prototype.repeat()")}} telah digunakan. Ia punya parameter <code>count</code> mengindikasikan jumlah pengulangan string. Ia harus bernilai antara 0 dan kurang dari positif {{jsxref("Infinity")}} dan tidak boleh angka negatif. Kisarannya nilai yang diperbolehkan bisa dijelaskan seperti ini: [0, +∞).</p>
+
+<h2 id="Contoh">Contoh</h2>
+
+<h3 id="Kasus_tak_valid">Kasus tak valid</h3>
+
+<pre class="brush: js example-bad">'abc'.repeat(-1); // RangeError </pre>
+
+<h3 id="Kasus_valid">Kasus valid</h3>
+
+<pre class="brush: js example-good">'abc'.repeat(0);    // ''
+'abc'.repeat(1);    // 'abc'
+'abc'.repeat(2);    // 'abcabc'
+'abc'.repeat(3.5);  // 'abcabcabc' (count will be converted to integer)
+</pre>
+
+<h2 id="Lihat_juga">Lihat juga</h2>
+
+<ul>
+ <li>{{jsxref("String.prototype.repeat()")}}</li>
+</ul>