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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: 'SyntaxError: JSON.parse: bad parsing'
+slug: Web/JavaScript/Reference/Errors/JSON_bad_parse
+translation_of: Web/JavaScript/Reference/Errors/JSON_bad_parse
+---
+<div>{{jsSidebar("Errors")}}</div>
+
+<h2 id="Mensagem">Mensagem</h2>
+
+<pre class="syntaxbox">SyntaxError: JSON.parse: unterminated string literal
+SyntaxError: JSON.parse: bad control character in string literal
+SyntaxError: JSON.parse: bad character in string literal
+SyntaxError: JSON.parse: bad Unicode escape
+SyntaxError: JSON.parse: bad escape character
+SyntaxError: JSON.parse: unterminated string
+SyntaxError: JSON.parse: no number after minus sign
+SyntaxError: JSON.parse: unexpected non-digit
+SyntaxError: JSON.parse: missing digits after decimal point
+SyntaxError: JSON.parse: unterminated fractional number
+SyntaxError: JSON.parse: missing digits after exponent indicator
+SyntaxError: JSON.parse: missing digits after exponent sign
+SyntaxError: JSON.parse: exponent part is missing a number
+SyntaxError: JSON.parse: unexpected end of data
+SyntaxError: JSON.parse: unexpected keyword
+SyntaxError: JSON.parse: unexpected character
+SyntaxError: JSON.parse: end of data while reading object contents
+SyntaxError: JSON.parse: expected property name or '}'
+SyntaxError: JSON.parse: end of data when ',' or ']' was expected
+SyntaxError: JSON.parse: expected ',' or ']' after array element
+SyntaxError: JSON.parse: end of data when property name was expected
+SyntaxError: JSON.parse: expected double-quoted property name
+SyntaxError: JSON.parse: end of data after property name when ':' was expected
+SyntaxError: JSON.parse: expected ':' after property name in object
+SyntaxError: JSON.parse: end of data after property value in object
+SyntaxError: JSON.parse: expected ',' or '}' after property value in object
+SyntaxError: JSON.parse: expected ',' or '}' after property-value pair in object literal
+SyntaxError: JSON.parse: property names must be double-quoted strings
+SyntaxError: JSON.parse: expected property name or '}'
+SyntaxError: JSON.parse: unexpected character
+SyntaxError: JSON.parse: unexpected non-whitespace character after JSON data
+</pre>
+
+<h2 id="Tipo_de_erro">Tipo de erro</h2>
+
+<p>{{jsxref("SyntaxError")}}</p>
+
+<h2 id="O_que_ocorreu_de_errado">O que ocorreu de errado?</h2>
+
+<p>{{jsxref("JSON.parse()")}} converte uma string para JSON. A string precisa ser um JSON válido e retornará esse erro caso a sintaxe esteja errada.</p>
+
+<h2 id="Exemplos">Exemplos</h2>
+
+<h3 id="JSON.parse()_não_permite_vírgulas_à_direita"><code>JSON.parse()</code> não permite vírgulas à direita</h3>
+
+<p>As duas linhas retornarão um SyntaxError:</p>
+
+<pre class="brush: js example-bad">JSON.parse('[1, 2, 3, 4,]');
+JSON.parse('{"foo": 1,}');
+// SyntaxError JSON.parse: unexpected character
+// at line 1 column 14 of the JSON data
+</pre>
+
+<p>Retire as virgulas sobrando para converter o JSON corretamente:</p>
+
+<pre class="brush: js example-good">JSON.parse('[1, 2, 3, 4]');
+JSON.parse('{"foo": 1}');</pre>
+
+<h3 id="Propriedades_precisão_ser_escritas_com_aspas_duplas">Propriedades precisão ser escritas com aspas duplas</h3>
+
+<p>Você não pode usar aspas simples em propriedades, exemplo: 'foo'.</p>
+
+<pre class="brush: js example-bad">JSON.parse("{'foo': 1}");
+// SyntaxError: JSON.parse: expected property name or '}'
+// at line 1 column 2 of the JSON data</pre>
+
+<p>Em vez disso use "foo":</p>
+
+<pre class="brush: js example-good">JSON.parse('{"foo": 1}');</pre>
+
+<h3 id="Zeros_à_esquerda_e_pontos_decimais">Zeros à esquerda e pontos decimais</h3>
+
+<p>Você não pode usar zeros à esquerda, como 01, e pontos decimais precisam ser seguidos de pelo menos um digito.</p>
+
+<pre class="brush: js example-bad">JSON.parse('{"foo": 01}');
+// SyntaxError: JSON.parse: expected ',' or '}' after property value
+// in object at line 1 column 2 of the JSON data
+
+JSON.parse('{"foo": 1.}');
+// SyntaxError: JSON.parse: unterminated fractional number
+// at line 1 column 2 of the JSON data
+</pre>
+
+<p>Em vez disso, use o 1 sem o zero, e pelo menos um digito após um ponto decimal:</p>
+
+<pre class="brush: js example-good">JSON.parse('{"foo": 1}');
+JSON.parse('{"foo": 1.0}');
+</pre>
+
+<h2 id="Veja_também">Veja também</h2>
+
+<ul>
+ <li>{{jsxref("JSON")}}</li>
+ <li>{{jsxref("JSON.parse()")}}</li>
+ <li>{{jsxref("JSON.stringify()")}}</li>
+</ul>