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+---
+title: Number.prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/Number
+tags:
+  - JavaScript
+  - Number
+  - Property
+  - Prototype
+translation_of: Web/JavaScript/Reference/Global_Objects/Number
+translation_of_original: Web/JavaScript/Reference/Global_Objects/Number/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/Number/prototype
+---
+<div>{{JSRef}}</div>
+
+<p>A propriedade <strong><code>Number.prototype</code></strong> representa o protótipo (prototype) para o constructor de {{jsxref("Number")}}.</p>
+
+<div>{{js_property_attributes(0, 0, 0)}}</div>
+
+<h2 id="Descrição">Descrição</h2>
+
+<p>Todas as instâncias de {{jsxref("Number")}} herdam de <code>Number.prototype</code>. O objecto protótipo (prototype) do constructor de {{jsxref("Number")}} pode ser modificado para afectar todas as instâncias de {{jsxref( "Number")}}.</p>
+
+<h2 id="Propriedades">Propriedades</h2>
+
+<dl>
+ <dt><code>Number.prototype.constructor</code></dt>
+ <dd>Retorna a função criadora das instâncias deste objecto. Por predifinição este é o objecto {{jsxref("Number")}}.</dd>
+</dl>
+
+<h2 id="Métodos">Métodos</h2>
+
+<dl>
+ <dt>{{jsxref("Number.prototype.toExponential()")}}</dt>
+ <dd>Retorna uma representação em string do número em notação científica.</dd>
+ <dt>{{jsxref("Number.prototype.toFixed()")}}</dt>
+ <dd>Retorna uma representação em string do número em notação de ponto fixo.</dd>
+ <dt>{{jsxref("Number.prototype.toLocaleString()")}}</dt>
+ <dd>Retorna uma string do número numa representação sensível à linguagem. Faz override do método {{jsxref("Object.prototype.toLocaleString()")}}.</dd>
+ <dt>{{jsxref("Number.prototype.toPrecision()")}}</dt>
+ <dd>Retorna uma representação em string do número numa precisão especificada em ponto fixo ou notação científica.</dd>
+ <dt>{{jsxref("Number.prototype.toSource()")}} {{non-standard_inline}}</dt>
+ <dd>Retorna um objecto literal representando o objecto {{jsxref("Number")}} especificado; podes usar este valor para criar um novo objecto. Faz override ao método {{jsxref("Object.prototype.toSource()")}}.</dd>
+ <dt>{{jsxref("Number.prototype.toString()")}}</dt>
+ <dd>Retorna uma representação em string do objecto especificado na base especificada. Faz override ao método {{jsxref("Object.prototype.toString()")}}.</dd>
+ <dt>{{jsxref("Number.prototype.valueOf()")}}</dt>
+ <dd>Retorna o valor primitivo do objecto especificado. Faz override ao método {{jsxref("Object.prototype.valueOf()")}}.</dd>
+</dl>
+
+<h2 id="Especificações">Especificações</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">Especificação</th>
+   <th scope="col">Estado</th>
+   <th scope="col">Comentário</th>
+  </tr>
+  <tr>
+   <td>{{SpecName('ES1')}}</td>
+   <td>{{Spec2('ES1')}}</td>
+   <td>Definição Inicial. Implementado em  JavaScript 1.1.</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('ES5.1', '#sec-15.7.4', 'Number')}}</td>
+   <td>{{Spec2('ES5.1')}}</td>
+   <td> </td>
+  </tr>
+  <tr>
+   <td>{{SpecName('ES6', '#sec-properties-of-the-number-prototype-object', 'Number')}}</td>
+   <td>{{Spec2('ES6')}}</td>
+   <td> </td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Compatibilidade_dos_browsers">Compatibilidade dos browsers</h2>
+
+<div>{{CompatibilityTable}}</div>
+
+<div id="compat-desktop">
+<table class="compat-table">
+ <tbody>
+  <tr>
+   <th>Funcionalidade</th>
+   <th>Chrome</th>
+   <th>Firefox (Gecko)</th>
+   <th>Internet Explorer</th>
+   <th>Opera</th>
+   <th>Safari</th>
+  </tr>
+  <tr>
+   <td>Suporte básico</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile">
+<table class="compat-table">
+ <tbody>
+  <tr>
+   <th>Funcionalidade</th>
+   <th>Android</th>
+   <th>Chrome para Android</th>
+   <th>Firefox Mobile (Gecko)</th>
+   <th>IE Mobile</th>
+   <th>Opera Mobile</th>
+   <th>Safari Mobile</th>
+  </tr>
+  <tr>
+   <td>Suporte básico</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+<h2 id="Ver_também">Ver também</h2>
+
+<ul>
+ <li>{{jsxref("Number")}}</li>
+</ul>
diff --git a/files/pt-pt/conflicting/web/javascript/reference/global_objects/object/index.html b/files/pt-pt/conflicting/web/javascript/reference/global_objects/object/index.html
new file mode 100644
index 0000000000..ab52d5bfc3
--- /dev/null
+++ b/files/pt-pt/conflicting/web/javascript/reference/global_objects/object/index.html
@@ -0,0 +1,200 @@
+---
+title: Object.prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/Object
+tags:
+  - JavaScript
+  - Object
+  - Objeto
+  - Propriedade
+translation_of: Web/JavaScript/Reference/Global_Objects/Object
+translation_of_original: Web/JavaScript/Reference/Global_Objects/Object/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/Object/prototype
+---
+<div>{{JSRef}}</div>
+
+<p>A propriedade <code><strong>Object.prototype</strong></code> representa o <em>prototype object</em> {{jsxref("Object","Objeto")}} .</p>
+
+<div>{{js_property_attributes(0, 0, 0)}}</div>
+
+<h2 id="Descrição">Descrição</h2>
+
+<p>Nearly all objects in JavaScript are instances of {{jsxref("Object")}}; a typical object inherits properties (including methods) from <code>Object.prototype</code>, although these properties may be shadowed (a.k.a. overridden). However, an <code>Object</code> may be deliberately created for which this is not true (e.g. by {{jsxref("Object.create", "Object.create(null)")}}), or it may be altered so that this is no longer true (e.g. with {{jsxref("Object.setPrototypeOf")}}).</p>
+
+<p>Changes to the <code>Object</code> prototype object are seen by <strong>all</strong> objects through prototype chaining, unless the properties and methods subject to those changes are overridden further along the prototype chain.  This provides a very powerful although potentially dangerous mechanism to override or extend object behavior.</p>
+
+<h2 id="Propriedades">Propriedades</h2>
+
+<dl>
+ <dt>{{jsxref("Object.prototype.constructor")}}</dt>
+ <dd>Specifies the function that creates an object's prototype.</dd>
+ <dt>{{jsxref("Object.prototype.__proto__")}} {{non-standard_inline}}</dt>
+ <dd>Points to the object which was used as prototype when the object was instantiated.</dd>
+ <dt>{{jsxref("Object.prototype.__noSuchMethod__")}} {{non-standard_inline}}</dt>
+ <dd>Allows a function to be defined that will be executed when an undefined object member is called as a method.</dd>
+ <dt><s class="obsoleteElement">{{jsxref("Object.prototype.count","Object.prototype.__count__")}} {{obsolete_inline}}</s></dt>
+ <dd><s class="obsoleteElement">Used to return the number of enumerable properties directly on a user-defined object, but has been removed.</s></dd>
+ <dt><s class="obsoleteElement">{{jsxref("Object.prototype.parent","Object.prototype.__parent__")}} {{obsolete_inline}}</s></dt>
+ <dd><s class="obsoleteElement">Used to point to an object's context, but has been removed.</s></dd>
+</dl>
+
+<h2 id="Métodos">Métodos</h2>
+
+<dl>
+ <dt>{{jsxref("Object.prototype.__defineGetter__()")}} {{non-standard_inline}} {{deprecated_inline}}</dt>
+ <dd>Associates a function with a property that, when accessed, executes that function and returns its return value.</dd>
+ <dt>{{jsxref("Object.prototype.__defineSetter__()")}} {{non-standard_inline}} {{deprecated_inline}}</dt>
+ <dd>Associates a function with a property that, when set, executes that function which modifies the property.</dd>
+ <dt>{{jsxref("Object.prototype.__lookupGetter__()")}} {{non-standard_inline}} {{deprecated_inline}}</dt>
+ <dd>Returns the function associated with the specified property by the {{jsxref("Object.prototype.__defineGetter__()", "__defineGetter__()")}} method.</dd>
+ <dt>{{jsxref("Object.prototype.__lookupSetter__()")}} {{non-standard_inline}} {{deprecated_inline}}</dt>
+ <dd>Returns the function associated with the specified property by the {{jsxref("Object.prototype.__defineSetter__()", "__defineSetter__()")}} method.</dd>
+ <dt>{{jsxref("Object.prototype.hasOwnProperty()")}}</dt>
+ <dd>Returns a boolean indicating whether an object contains the specified property as a direct property of that object and not inherited through the prototype chain.</dd>
+ <dt>{{jsxref("Object.prototype.isPrototypeOf()")}}</dt>
+ <dd>Returns a boolean indicating whether the object this method is called upon is in the prototype chain of the specified object.</dd>
+ <dt>{{jsxref("Object.prototype.propertyIsEnumerable()")}}</dt>
+ <dd>Returns a boolean indicating if the internal <a href="/en-US/docs/Web/JavaScript/Data_structures#Properties">ECMAScript [[Enumerable]] attribute</a> is set.</dd>
+ <dt>{{jsxref("Object.prototype.toSource()")}} {{non-standard_inline}}</dt>
+ <dd>Returns string containing the source of an object literal representing the object that this method is called upon; you can use this value to create a new object.</dd>
+ <dt>{{jsxref("Object.prototype.toLocaleString()")}}</dt>
+ <dd>Calls {{jsxref("Object.toString", "toString()")}}.</dd>
+ <dt>{{jsxref("Object.prototype.toString()")}}</dt>
+ <dd>Returns a string representation of the object.</dd>
+ <dt>{{jsxref("Object.prototype.unwatch()")}} {{non-standard_inline}}</dt>
+ <dd>Removes a watchpoint from a property of the object.</dd>
+ <dt>{{jsxref("Object.prototype.valueOf()")}}</dt>
+ <dd>Returns the primitive value of the specified object.</dd>
+ <dt>{{jsxref("Object.prototype.watch()")}} {{non-standard_inline}}</dt>
+ <dd>Adds a watchpoint to a property of the object.</dd>
+ <dt><s class="obsoleteElement">{{jsxref("Object.prototype.eval()")}} {{obsolete_inline}}</s></dt>
+ <dd><s class="obsoleteElement">Used to evaluate a string of JavaScript code in the context of the specified object, but has been removed.</s></dd>
+</dl>
+
+<h2 id="Exemplos">Exemplos</h2>
+
+<p>When altering the behavior of existing Object.prototype methods, consider injecting code by wrapping your extension before or after the existing logic.  For example, this (untested) code will pre-conditionally execute custom logic before the built-in logic or someone else's extension is executed.</p>
+
+<p>When a function is called, the arguments to the call are held in the array-like "variable" <a href="/en-US/docs/Web/JavaScript/Reference/Functions/arguments">arguments</a>. For example, in the call "myFn(a, b, c)", the arguments within myFn's body will contain 3 array-like elements corresponding to (a, b, c).  When modifying prototypes with hooks, simply pass this &amp; the arguments (the call state) to the current behavior by calling apply() on the function.  This pattern can be used for any prototype, such as Node.prototype, Function.prototype, etc.</p>
+
+<pre class="brush: js">var current = Object.prototype.valueOf;
+
+// Since my property "-prop-value" is cross-cutting and isn't always
+// on the same prototype chain, I want to modify Object.prototype:
+Object.prototype.valueOf = function() {
+  if (this.hasOwnProperty('-prop-value')) {
+    return this['-prop-value'];
+  } else {
+    // It doesn't look like one of my objects, so let's fall back on
+    // the default behavior by reproducing the current behavior as best we can.
+    // The apply behaves like "super" in some other languages.
+    // Even though valueOf() doesn't take arguments, some other hook may.
+    return current.apply(this, arguments);
+  }
+}
+</pre>
+
+<p>Since JavaScript doesn't exactly have sub-class objects, prototype is a useful workaround to make a “base class” object of certain functions that act as objects. For example:</p>
+
+<pre class="brush: js">var Person = function(name) {
+  this.name = name;
+  this.canTalk = true;
+};
+
+Person.prototype.greet = function() {
+  if (this.canTalk) {
+    console.log('Hi, I am ' + this.name);
+  }
+};
+
+var Employee = function(name, title) {
+  Person.call(this, name);
+  this.title = title;
+};
+
+Employee.prototype = Object.create(Person.prototype);
+
+Employee.prototype.greet = function() {
+  if (this.canTalk) {
+    console.log('Hi, I am ' + this.name + ', the ' + this.title);
+  }
+};
+
+var Customer = function(name) {
+  Person.call(this, name);
+};
+
+Customer.prototype = Object.create(Person.prototype);
+
+var Mime = function(name) {
+  Person.call(this, name);
+  this.canTalk = false;
+};
+
+Mime.prototype = Object.create(Person.prototype);
+
+var bob = new Employee('Bob', 'Builder');
+var joe = new Customer('Joe');
+var rg = new Employee('Red Green', 'Handyman');
+var mike = new Customer('Mike');
+var mime = new Mime('Mime');
+
+bob.greet();
+// Hi, I am Bob, the Builder
+
+joe.greet();
+// Hi, I am Joe
+
+rg.greet();
+// Hi, I am Red Green, the Handyman
+
+mike.greet();
+// Hi, I am Mike
+
+mime.greet();
+</pre>
+
+<h2 id="Especificações">Especificações</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">Especificação</th>
+   <th scope="col">Estado</th>
+   <th scope="col">Comentário</th>
+  </tr>
+  <tr>
+   <td>{{SpecName('ES1')}}</td>
+   <td>{{Spec2('ES1')}}</td>
+   <td>Initial definition. Implemented in JavaScript 1.0.</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('ES5.1', '#sec-15.2.3.1', 'Object.prototype')}}</td>
+   <td>{{Spec2('ES5.1')}}</td>
+   <td> </td>
+  </tr>
+  <tr>
+   <td>{{SpecName('ES6', '#sec-object.prototype', 'Object.prototype')}}</td>
+   <td>{{Spec2('ES6')}}</td>
+   <td> </td>
+  </tr>
+  <tr>
+   <td>{{SpecName('ESDraft', '#sec-object.prototype', 'Object.prototype')}}</td>
+   <td>{{Spec2('ESDraft')}}</td>
+   <td> </td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Compatibilidade_de_navegador">Compatibilidade de navegador</h2>
+
+<div>
+
+
+<p>{{Compat("javascript.builtins.Object.prototype")}}</p>
+</div>
+
+<h2 id="Consultar_também">Consultar também</h2>
+
+<ul>
+ <li><a href="/pt-PT/docs/Learn/JavaScript/Objects">Introdução ao JavaScript Orientado a Objetos</a></li>
+</ul>