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+---
+title: Precedencia de operadores
+slug: Web/JavaScript/Referencia/Operadores/Operator_Precedence
+tags:
+  - JavaScript
+  - Operator
+  - operator details
+  - operator precedence
+translation_of: Web/JavaScript/Reference/Operators/Operator_Precedence
+---
+<div>{{jsSidebar("Operators")}}</div>
+
+<h2 id="Summary" name="Summary">Sumario</h2>
+
+<p>La precedencia de operadores determina el orden en el cual los operadores son evaluados. Los operadores con mayor precedencia son evaluados primero.</p>
+
+<p>Ejemplo:</p>
+
+<pre class="brush: js">3 + 4 * 5 // retorna 23
+</pre>
+
+<p>El operador de multiplicación ("*") tiene una precedencia mas alta que el operador de suma ("+") y por eso sera evaluado primero.</p>
+
+<h2 id="Associativity" name="Associativity">Asociatividad</h2>
+
+<p>La asociatividad determina el orden en el cual los operadores con el mismo nivel de precedencia son procesados. Por ejemplo:</p>
+
+<pre class="brush: js">a OP b OP c
+</pre>
+
+<p>La asociatividad de izquierda a derecha significa que esa expresión es procesada como <code>(a OP b) OP c, </code>mientras que la asociatividad de derecha a izquierda significa que es procesada como a<code> OP (b OP c). </code>Los operadores de asignación tienen asociatividad de derecha a izquierda, por lo que puedes escribir:</p>
+
+<pre class="brush: js">a = b = 5;
+</pre>
+
+<p>para asignar 5 a las dos variables. Esto es porque el operador de asignación retorna el valor que asignó. Primero <code>b</code> es inicializada a 5. Despues <code>a</code> es inicializada al valor de <code>b</code>.</p>
+
+<h2 id="Table" name="Table">Tabla</h2>
+
+<p>La siguiente tabla esta ordenada de la precedencia más alta (0) a la más baja (18).</p>
+
+<table class="fullwidth-table">
+ <tbody>
+  <tr>
+   <th>Precedencia</th>
+   <th>Tipo de operador</th>
+   <th>Asociatividad</th>
+   <th>Operador</th>
+  </tr>
+  <tr>
+   <td>0</td>
+   <td>grouping</td>
+   <td>n/a</td>
+   <td><code>(</code>…<code>)</code></td>
+  </tr>
+  <tr>
+   <td rowspan="3">1</td>
+   <td rowspan="2"><a href="/en-US/docs/JavaScript/Reference/Operators/Member_Operators" title="JavaScript/Reference/Operators/Member_Operators">member</a></td>
+   <td rowspan="2">left-to-right</td>
+   <td>…<code>.<var>…</var></code></td>
+  </tr>
+  <tr>
+   <td>…<code>[<var>…</var>]</code></td>
+  </tr>
+  <tr>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Special/new" title="JavaScript/Reference/Operators/Special_Operators/new_Operator">new</a></td>
+   <td>n/a</td>
+   <td><code>new</code> … <code>(<var>…</var>)</code></td>
+  </tr>
+  <tr>
+   <td rowspan="2">2</td>
+   <td><a href="/en-US/docs/JavaScript/Guide/Functions" title="JavaScript/Reference/Operators/Special_Operators/function_call">function call</a></td>
+   <td>left-to-right</td>
+   <td>…<code>(<var>…</var>)</code></td>
+  </tr>
+  <tr>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Special/new" title="JavaScript/Reference/Operators/Special_Operators/new_Operator">new</a></td>
+   <td>right-to-left</td>
+   <td><code>new</code> …</td>
+  </tr>
+  <tr>
+   <td rowspan="2">3</td>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Arithmetic_Operators" title="JavaScript/Reference/Operators/Arithmetic_Operators">increment</a></td>
+   <td>n/a</td>
+   <td>…<code>++</code></td>
+  </tr>
+  <tr>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Arithmetic_Operators" title="JavaScript/Reference/Operators/Arithmetic_Operators">decrement</a></td>
+   <td>n/a</td>
+   <td>…<code>--</code></td>
+  </tr>
+  <tr>
+   <td rowspan="7">4</td>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Logical_Operators" title="JavaScript/Reference/Operators/Logical_Operators">logical-not</a></td>
+   <td>right-to-left</td>
+   <td><code>!</code>…</td>
+  </tr>
+  <tr>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Bitwise_Operators" title="JavaScript/Reference/Operators/Bitwise_Operators">bitwise not</a></td>
+   <td>right-to-left</td>
+   <td><code>~</code>…</td>
+  </tr>
+  <tr>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Arithmetic_Operators" title="JavaScript/Reference/Operators/Arithmetic_Operators">unary +</a></td>
+   <td>right-to-left</td>
+   <td><code>+</code>…</td>
+  </tr>
+  <tr>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Arithmetic_Operators" title="JavaScript/Reference/Operators/Arithmetic_Operators">unary negation</a></td>
+   <td>right-to-left</td>
+   <td><code>-</code>…</td>
+  </tr>
+  <tr>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Special/typeof" title="JavaScript/Reference/Operators/Special_Operators/typeof_Operator">typeof</a></td>
+   <td>right-to-left</td>
+   <td><code>typeof</code> …</td>
+  </tr>
+  <tr>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Special/void" title="JavaScript/Reference/Operators/Special_Operators/void_Operator">void</a></td>
+   <td>right-to-left</td>
+   <td><code>void</code> …</td>
+  </tr>
+  <tr>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Special/delete" title="JavaScript/Reference/Operators/Special_Operators/delete_Operator">delete</a></td>
+   <td>right-to-left</td>
+   <td><code>delete</code> …</td>
+  </tr>
+  <tr>
+   <td rowspan="3">5</td>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Arithmetic_Operators" title="JavaScript/Reference/Operators/Arithmetic_Operators">multiplication</a></td>
+   <td>left-to-right</td>
+   <td><code>*</code></td>
+  </tr>
+  <tr>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Arithmetic_Operators" title="JavaScript/Reference/Operators/Arithmetic_Operators">division</a></td>
+   <td>left-to-right</td>
+   <td><code>/</code></td>
+  </tr>
+  <tr>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Arithmetic_Operators" title="JavaScript/Reference/Operators/Arithmetic_Operators">modulus</a></td>
+   <td>left-to-right</td>
+   <td><code>%</code></td>
+  </tr>
+  <tr>
+   <td rowspan="2">6</td>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Arithmetic_Operators" title="JavaScript/Reference/Operators/Arithmetic_Operators">addition</a></td>
+   <td>left-to-right</td>
+   <td><code>+</code></td>
+  </tr>
+  <tr>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Arithmetic_Operators" title="JavaScript/Reference/Operators/Arithmetic_Operators">subtraction</a></td>
+   <td>left-to-right</td>
+   <td><code>-</code></td>
+  </tr>
+  <tr>
+   <td rowspan="3">7</td>
+   <td rowspan="3"><a href="/en-US/docs/JavaScript/Reference/Operators/Bitwise_Operators" title="JavaScript/Reference/Operators/Bitwise_Operators">bitwise shift</a></td>
+   <td rowspan="3">left-to-right</td>
+   <td><code>&lt;&lt;</code></td>
+  </tr>
+  <tr>
+   <td><code>&gt;&gt;</code></td>
+  </tr>
+  <tr>
+   <td><code>&gt;&gt;&gt;</code></td>
+  </tr>
+  <tr>
+   <td rowspan="6">8</td>
+   <td rowspan="4"><a href="/en-US/docs/JavaScript/Reference/Operators/Comparison_Operators" title="JavaScript/Reference/Operators/Comparison_Operators">relational</a></td>
+   <td rowspan="4">left-to-right</td>
+   <td><code>&lt;</code></td>
+  </tr>
+  <tr>
+   <td><code>&lt;=</code></td>
+  </tr>
+  <tr>
+   <td><code>&gt;</code></td>
+  </tr>
+  <tr>
+   <td><code>&gt;=</code></td>
+  </tr>
+  <tr>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Special/in" title="JavaScript/Reference/Operators/Special_Operators/in_Operator">in</a></td>
+   <td>left-to-right</td>
+   <td><code>in</code></td>
+  </tr>
+  <tr>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Special/instanceof" title="JavaScript/Reference/Operators/Special_Operators/instanceof_Operator">instanceof</a></td>
+   <td>left-to-right</td>
+   <td><code>instanceof</code></td>
+  </tr>
+  <tr>
+   <td rowspan="4">9</td>
+   <td rowspan="4"><a href="/en-US/docs/JavaScript/Reference/Operators/Comparison_Operators" title="JavaScript/Reference/Operators/Comparison_Operators">equality</a></td>
+   <td rowspan="4">left-to-right</td>
+   <td><code>==</code></td>
+  </tr>
+  <tr>
+   <td><code>!=</code></td>
+  </tr>
+  <tr>
+   <td><code>===</code></td>
+  </tr>
+  <tr>
+   <td><code>!==</code></td>
+  </tr>
+  <tr>
+   <td>10</td>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Bitwise_Operators" title="JavaScript/Reference/Operators/Bitwise_Operators">bitwise-and</a></td>
+   <td>left-to-right</td>
+   <td><code>&amp;</code></td>
+  </tr>
+  <tr>
+   <td>11</td>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Bitwise_Operators" title="JavaScript/Reference/Operators/Bitwise_Operators">bitwise-xor</a></td>
+   <td>left-to-right</td>
+   <td><code>^</code></td>
+  </tr>
+  <tr>
+   <td>12</td>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Bitwise_Operators" title="JavaScript/Reference/Operators/Bitwise_Operators">bitwise-or</a></td>
+   <td>left-to-right</td>
+   <td><code>|</code></td>
+  </tr>
+  <tr>
+   <td>13</td>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Logical_Operators" title="JavaScript/Reference/Operators/Logical_Operators">logical-and</a></td>
+   <td>left-to-right</td>
+   <td><code>&amp;&amp;</code></td>
+  </tr>
+  <tr>
+   <td>14</td>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Logical_Operators" title="JavaScript/Reference/Operators/Logical_Operators">logical-or</a></td>
+   <td>left-to-right</td>
+   <td><code>||</code></td>
+  </tr>
+  <tr>
+   <td>15</td>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Special/Conditional_Operator" title="JavaScript/Reference/Operators/Special_Operators/Conditional_Operator">conditional</a></td>
+   <td>right-to-left</td>
+   <td>… <code>?</code> … <code>:</code> …</td>
+  </tr>
+  <tr>
+   <td rowspan="12">16</td>
+   <td rowspan="12"><a href="/en-US/docs/JavaScript/Reference/Operators/Assignment_Operators" title="JavaScript/Reference/Operators/Assignment_Operators">assignment</a></td>
+   <td rowspan="12">right-to-left</td>
+   <td><code>=</code></td>
+  </tr>
+  <tr>
+   <td><code>+=</code></td>
+  </tr>
+  <tr>
+   <td><code>-=</code></td>
+  </tr>
+  <tr>
+   <td><code>*=</code></td>
+  </tr>
+  <tr>
+   <td><code>/=</code></td>
+  </tr>
+  <tr>
+   <td><code>%=</code></td>
+  </tr>
+  <tr>
+   <td><code>&lt;&lt;=</code></td>
+  </tr>
+  <tr>
+   <td><code>&gt;&gt;=</code></td>
+  </tr>
+  <tr>
+   <td><code>&gt;&gt;&gt;=</code></td>
+  </tr>
+  <tr>
+   <td><code>&amp;=</code></td>
+  </tr>
+  <tr>
+   <td><code>^=</code></td>
+  </tr>
+  <tr>
+   <td><code>|=</code></td>
+  </tr>
+  <tr>
+   <td>17</td>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/yield" title="JavaScript/Reference/Operators/yield">yield</a></td>
+   <td>right-to-left</td>
+   <td><code>yield</code>…</td>
+  </tr>
+  <tr>
+   <td>18</td>
+   <td><a href="/en-US/docs/JavaScript/Reference/Operators/Special/Comma_Operator" title="JavaScript/Reference/Operators/Special_Operators/Comma_Operator">comma</a></td>
+   <td>left-to-right</td>
+   <td><code>,</code></td>
+  </tr>
+ </tbody>
+</table>
+
+<p></p>