diff options
Diffstat (limited to 'files/tr/web/javascript/reference/classes/index.html')
-rw-r--r-- | files/tr/web/javascript/reference/classes/index.html | 276 |
1 files changed, 0 insertions, 276 deletions
diff --git a/files/tr/web/javascript/reference/classes/index.html b/files/tr/web/javascript/reference/classes/index.html deleted file mode 100644 index 77a29ab167..0000000000 --- a/files/tr/web/javascript/reference/classes/index.html +++ /dev/null @@ -1,276 +0,0 @@ ---- -title: Classes -slug: Web/JavaScript/Reference/Classes -tags: - - Classes - - Constructors - - ECMAScript6 - - Inheritance - - Intermediate - - JavaScript - - Kalıtım - - NeedsTranslation - - TopicStub - - sınıf -translation_of: Web/JavaScript/Reference/Classes ---- -<div>{{JsSidebar("Classes")}}</div> - -<p id="ECMAScript_2015_ile_tanıtılan_Javascript_sınıfları_aslında_halihazırdaki_prototype_temelli_kalıtımın_sözdizi_daha_kolaylaştırılmış_halidir._Class_sözdizimi_yeni_bir_nesne_tabanlı_Javascript_modeli_sunmamaktadır.">ECMAScript 2015 ile tanıtılan Javascript sınıfları, aslında halihazırdaki prototype temelli kalıtımın, sözdizi daha kolaylaştırılmış halidir. Class sözdizimi yeni bir nesne tabanlı Javascript modeli <u>sunmamaktadır</u>.</p> - -<h2 id="Sınıf_tanımlama">Sınıf tanımlama</h2> - -<p><br> - Aslında sınıflar class oluşturmak için kullanılan özel <a href="/tr/docs/Web/JavaScript/Reference/Functions">fonksiyonlar</a>dır. Javascript sınıfları <a href="/tr/docs/Web/JavaScript/Reference/Operators/function">klasik fonksiyon tanımladığınız</a> gibi tanımlayabilir veya fonksiyonlar ile yapabildiğiniz gibi bir <a href="/tr/docs/Web/JavaScript/Reference/Statements/class">değişkene atayabilirsiniz</a>.</p> - -<h3 id="Sınıf_Tanımları">Sınıf Tanımları</h3> - -<p>Bir sınıf tanımlamanın bir yolu <code>class</code> ifadesini sınıf adınızla birlikte kullanmaktır. (Örn: Dikdortgen)</p> - -<pre class="brush: js">class Dikdortgen { - constructor(yukseklik, genislik) { - this.yukseklik = yukseklik; - this.genislik = genislik; - } -}</pre> - -<h4 id="Erişim">Erişim</h4> - -<p>Sınıf tanımları ve fonksiyon tanımları arasındaki önemli bir fark, fonksiyonlara tanımlandığı satırdan önce {{Glossary("Hoisting", "erişim sağlanabilir")}}. Sınıflara tanımlandığı satırdan önce erişilemezler. Önce sınıfları tanımlamanız ve ardından ona erişmeniz gerekir. Aksi halde aşağıdakine benzer bir hatayla karşılaşırsınız. {{jsxref("ReferenceError")}}:</p> - -<pre class="brush: js example-bad">var p = new Galeri(); // ReferenceError - -class Galeri {} -</pre> - -<h3 id="Class_expressions">Class expressions</h3> - -<p>Bir class'ı tanımlamanın bir başka yolu ise <strong>"class"</strong> ifadesidir. Class ifadelerine isim verilebilir. İsimli olan bir class ifadesi class body'sinin localidir.</p> - -<p> </p> - -<pre class="brush: js">// isimsiz class -var Dikdortgen = class { - constructor(yukseklik, genislik) { - this.yukseklik= yukseklik; - this.genislik= genislik; - } -}; - -// isimli class -var Dikdortgen = class Dikdortgen { - constructor(yukseklik, genislik) { - this.yukseklik= yukseklik; - this.genislik= genislik; - } -}; -</pre> - -<h2 id="Class_body_and_method_definitions">Class body and method definitions</h2> - -<p>The body of a class is the part that is in curly brackets <code>{}</code>. This is where you define class members, such as methods or constructors.</p> - -<h3 id="Strict_mode">Strict mode</h3> - -<p>The bodies of <em>class declarations</em> and <em>class expressions</em> are executed in <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Strict_mode">strict mode</a>.</p> - -<h3 id="Constructor">Constructor</h3> - -<p>The <code><a href="/en-US/docs/Web/JavaScript/Reference/Classes/constructor">constructor</a></code> method is a special method for creating and initializing an object created with a <code>class</code>. There can only be one special method with the name "constructor" in a class. A {{jsxref("SyntaxError")}} will be thrown if the class contains more than one occurrence of a <code>constructor</code> method.</p> - -<p>A constructor can use the <code>super</code> keyword to call the constructor of a parent class.</p> - -<h3 id="Prototype_methods">Prototype methods</h3> - -<p>See also <a href="/en-US/docs/Web/JavaScript/Reference/Functions/Method_definitions">method definitions</a>.</p> - -<pre class="brush: js">class Polygon { - constructor(height, width) { - this.height = height; - this.width = width; - } - - get area() { - return this.calcArea(); - } - - calcArea() { - return this.height * this.width; - } -}</pre> - -<h3 id="Static_methods">Static methods</h3> - -<p>The <code><a href="/en-US/docs/Web/JavaScript/Reference/Classes/static">static</a></code> keyword defines a static method for a class. Static methods are called without <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Introduction_to_Object-Oriented_JavaScript#The_object_(class_instance)" title='An example of class instance is "var john = new Person();"'>instantiating </a>their class and are also <strong>not </strong>callable when the class is instantiated. Static methods are often used to create utility functions for an application.</p> - -<pre class="brush: js">class Point { - constructor(x, y) { - this.x = x; - this.y = y; - } - - static distance(a, b) { - const dx = a.x - b.x; - const dy = a.y - b.y; - - return Math.sqrt(dx*dx + dy*dy); - } -} - -const p1 = new Point(5, 5); -const p2 = new Point(10, 10); - -console.log(Point.distance(p1, p2));</pre> - -<h2 id="Sub_classing_with_extends">Sub classing with <code>extends</code></h2> - -<p>The <code><a href="/en-US/docs/Web/JavaScript/Reference/Classes/extends">extends</a></code> keyword is used in <em>class declarations</em> or <em>class expressions</em> to create a class as a child of another class.</p> - -<pre class="brush: js">class Animal { - constructor(name) { - this.name = name; - } - - speak() { - console.log(this.name + ' makes a noise.'); - } -} - -class Dog extends Animal { - speak() { - console.log(this.name + ' barks.'); - } -} -</pre> - -<h2 id="Super_class_calls_with_super">Super class calls with <code>super</code></h2> - -<p>The <code><a href="/en-US/docs/Web/JavaScript/Reference/Operators/super">super</a></code> keyword is used to call functions on an object's parent.</p> - -<pre class="brush: js">class Cat { - constructor(name) { - this.name = name; - } - - speak() { - console.log(this.name + ' makes a noise.'); - } -} - -class Lion extends Cat { - speak() { - super.speak(); - console.log(this.name + ' roars.'); - } -} -</pre> - -<h2 id="Mix-ins">Mix-ins</h2> - -<p>Abstract subclasses or <em>mix-ins</em> are templates for classes. An ECMAScript class can only have a single superclass, so multiple inheritance from tooling classes, for example, is not possible. The functionality must be provided by the superclass.</p> - -<p>A function with a superclass as input and a subclass extending that superclass as output can be used to implement mix-ins in ECMAScript:</p> - -<pre class="brush: js">var CalculatorMixin = Base => class extends Base { - calc() { } -}; - -var RandomizerMixin = Base => class extends Base { - randomize() { } -}; -</pre> - -<p>A class that uses these mix-ins can then be written like this:</p> - -<pre class="brush: js">class Foo { } -class Bar extends CalculatorMixin(RandomizerMixin(Foo)) { }</pre> - -<h2 id="Specifications">Specifications</h2> - -<table class="standard-table"> - <tbody> - <tr> - <th scope="col">Specification</th> - <th scope="col">Status</th> - <th scope="col">Comment</th> - </tr> - <tr> - <td>{{SpecName('ES6', '#sec-class-definitions', 'Class definitions')}}</td> - <td>{{Spec2('ES6')}}</td> - <td>Initial definition.</td> - </tr> - <tr> - <td>{{SpecName('ESDraft', '#sec-class-definitions', 'Class definitions')}}</td> - <td>{{Spec2('ESDraft')}}</td> - <td> </td> - </tr> - </tbody> -</table> - -<h2 id="Browser_compatibility">Browser compatibility</h2> - -<p>{{CompatibilityTable}}</p> - -<div id="compat-desktop"> -<table class="compat-table"> - <tbody> - <tr> - <th>Feature</th> - <th>Chrome</th> - <th>Firefox (Gecko)</th> - <th>Edge</th> - <th>Internet Explorer</th> - <th>Opera</th> - <th>Safari</th> - </tr> - <tr> - <td>Basic support</td> - <td>{{CompatChrome(42.0)}}<sup>[1]</sup><br> - {{CompatChrome(49.0)}}</td> - <td>45</td> - <td>13</td> - <td>{{CompatNo}}</td> - <td>{{CompatNo}}</td> - <td>{{CompatSafari(9.0)}}</td> - </tr> - </tbody> -</table> -</div> - -<div id="compat-mobile"> -<table class="compat-table"> - <tbody> - <tr> - <th>Feature</th> - <th>Android</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>{{CompatNo}}</td> - <td>45</td> - <td>{{CompatUnknown}}</td> - <td>{{CompatUnknown}}</td> - <td>9</td> - <td>{{CompatChrome(42.0)}}<sup>[1]</sup><br> - {{CompatChrome(49.0)}}</td> - </tr> - </tbody> -</table> -</div> - -<p>[1] Requires strict mode. Non-strict mode support is behind the flag "Enable Experimental JavaScript", disabled by default.</p> - -<h2 id="See_also">See also</h2> - -<ul> - <li><a href="/en-US/docs/Web/JavaScript/Reference/Functions">Functions</a></li> - <li><a href="/en-US/docs/Web/JavaScript/Reference/Statements/class"><code>class</code> declaration</a></li> - <li><a href="/en-US/docs/Web/JavaScript/Reference/Operators/class"><code>class</code> expression</a></li> - <li>{{jsxref("Operators/super", "super")}}</li> - <li><a href="https://hacks.mozilla.org/2015/07/es6-in-depth-classes/">Blog post: "ES6 In Depth: Classes"</a></li> -</ul> |