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authorPeter Bengtsson <mail@peterbe.com>2020-12-08 14:42:52 -0500
committerPeter Bengtsson <mail@peterbe.com>2020-12-08 14:42:52 -0500
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+---
+title: 'RangeError: repeat count must be non-negative'
+slug: Web/JavaScript/Reference/Errors/Negative_repetition_count
+tags:
+ - Erros
+ - JavaScript
+ - RangeError
+translation_of: Web/JavaScript/Reference/Errors/Negative_repetition_count
+---
+<div>{{jsSidebar("Errors")}}</div>
+
+<h2 id="Mensagem">Mensagem</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="Tipo_de_Erro">Tipo de Erro</h2>
+
+<p>{{jsxref("RangeError")}}</p>
+
+<h2 id="O_que_está_errado">O que está errado?</h2>
+
+<p>O método {{jsxref("String.prototype.repeat()")}} foi usado. Ele tem um parâmetro <code>count</code> indicando o número de vezes para repetir a string. Esse contador deve ser maior ou igual à 0 menor que  {{jsxref("Infinity")}} (infinito positivo). O intervalo de vaores permitidos pode ser descrito por:  [0, +∞).</p>
+
+<h2 id="Exemplos">Exemplos</h2>
+
+<h3 id="Errado">Errado</h3>
+
+<pre class="brush: js example-bad">'abc'.repeat(-1); // RangeError </pre>
+
+<h3 id="Certo">Certo</h3>
+
+<pre class="brush: js example-good">'abc'.repeat(0); // ''
+'abc'.repeat(1); // 'abc'
+'abc'.repeat(2); // 'abcabc'
+'abc'.repeat(3.5); // 'abcabcabc' (count será convertido para inteiro)
+</pre>
+
+<h2 id="Veja_também">Veja também</h2>
+
+<ul>
+ <li>{{jsxref("String.prototype.repeat()")}}</li>
+</ul>