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authorPeter Bengtsson <mail@peterbe.com>2020-12-08 14:42:17 -0500
committerPeter Bengtsson <mail@peterbe.com>2020-12-08 14:42:17 -0500
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+---
+title: Function.name
+slug: Web/JavaScript/Reference/Global_Objects/Function/name
+tags:
+ - ECMAScript6
+ - Function
+ - JavaScript
+ - Property
+translation_of: Web/JavaScript/Reference/Global_Objects/Function/name
+---
+<div>{{JSRef}}</div>
+
+<p>Properti <code><strong><em>function</em>.name</strong></code> mengembalikan nama fungsi.</p>
+
+<div>{{js_property_attributes(0,0,1)}}</div>
+
+<div>Perlu di ingat bahwa ini di dalam non-standard, implementasi pre-ES6 atribut <code>configurable</code> juga <code>false</code>.</div>
+
+<h2 id="Deskripsi">Deskripsi</h2>
+
+<p>Properti <code>name</code> property mengembalikan nama sebuah fungsi , atau (sebelum implementasi ES6) string kosong untuk anonymous functions:</p>
+
+<pre class="brush: js">function doSomething() {}
+
+console.log(doSomething.name); // logs "doSomething"
+</pre>
+
+<p>Fungsi di buat menggunakan sintaks <code>new Function(...)</code> atau hanya <code>Function(...)</code> memiliki properti <code>name</code> di set empty string. Pada contoh anonymous functions dibuat, sehingga <code>name</code> mengembalikan empty string:</p>
+
+<pre class="brush: js">var f = function() {};
+var object = {
+ someMethod: function() {}
+};
+
+console.log(f.name == ''); // true
+console.log(object.someMethod.name == ''); // also true
+</pre>
+
+<p>Browser yang mengimplementasikan fungsi ES6 mengambil nama dari anonymous function dari posisi syntactic-nya. Contoh:</p>
+
+<pre class="brush: js">var f = function() {};
+console.log(f.name); // "f"</pre>
+
+<p>Anda bisa mendefinisikan sebuah fungsi dengan nama di {{jsxref("Operators/Function", "function expression", "", 1)}}:</p>
+
+<pre class="brush: js">var object = {
+ someMethod: function object_someMethod() {}
+};
+console.log(object.someMethod.name); // logs "object_someMethod"
+
+try { object_someMethod } catch(e) { console.log(e); }
+// ReferenceError: object_someMethod is not defined
+</pre>
+
+<p>Anda tidak bisa mengubah nama fungsi, Properti ini hanya bisa dibaca:</p>
+
+<pre class="brush: js">var object = {
+ // anonymous
+ someMethod: function() {}
+};
+
+object.someMethod.name = 'someMethod';
+console.log(object.someMethod.name); // empty string, someMethod is anonymous
+</pre>
+
+<p>Untuk mengubah, anda perlu menggunakan {{jsxref("Object.defineProperty()")}}.</p>
+
+<h2 id="Contoh">Contoh</h2>
+
+<p>Anda bisa menggunakan <code>obj.constructor.name</code> untuk memeriksa "class" dari sebuah objek:</p>
+
+<pre class="brush: js">function a() {}
+
+var b = new a();
+
+console.log(b.constructor.name); // logs "a"
+</pre>
+
+<h2 id="Spesifikasi">Spesifikasi</h2>
+
+<table class="standard-table">
+ <tbody>
+ <tr>
+ <th scope="col">Spesifikasi</th>
+ <th scope="col">Status</th>
+ <th scope="col">Comment</th>
+ </tr>
+ <tr>
+ <td>{{SpecName('ES6', '#sec-name', 'name')}}</td>
+ <td>{{Spec2('ES6')}}</td>
+ <td>Initial definition.</td>
+ </tr>
+ <tr>
+ <td>{{SpecName('ESDraft', '#sec-name', 'name')}}</td>
+ <td>{{Spec2('ESDraft')}}</td>
+ <td> </td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="Kompabilitas_browser">Kompabilitas browser</h2>
+
+<div>{{CompatibilityTable}}</div>
+
+<div id="compat-desktop">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>Feature</th>
+ <th>Chrome</th>
+ <th>Firefox (Gecko)</th>
+ <th>Internet Explorer</th>
+ <th>Opera</th>
+ <th>Safari</th>
+ </tr>
+ <tr>
+ <td>Basic support</td>
+ <td>{{CompatChrome(33.0)}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ </tr>
+ <tr>
+ <td>Configurable: true</td>
+ <td>{{CompatChrome(43.0)}}</td>
+ <td>{{CompatGeckoDesktop(38)}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td>Inferred names on anonymous functions</td>
+ <td>{{CompatChrome(51.0)}}</td>
+ <td>{{CompatNo}} [1]</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>Feature</th>
+ <th>Android</th>
+ <th>Android Webview</th>
+ <th>Firefox Mobile (Gecko)</th>
+ <th>IE Mobile</th>
+ <th>Opera Mobile</th>
+ <th>Safari Mobile</th>
+ <th>Chrome for Android</th>
+ </tr>
+ <tr>
+ <td>Basic support</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ </tr>
+ <tr>
+ <td>Configurable: true</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoMobile(38)}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td>Inferred names on anonymous functions</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatChrome(51.0)}}</td>
+ <td>{{CompatNo}} [1]</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatChrome(51.0)}}</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<p>[1] See {{bug(883377)}}.</p>