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+---
+title: export
+slug: Web/JavaScript/Reference/Statements/export
+translation_of: Web/JavaScript/Reference/Statements/export
+---
+<div>{{jsSidebar("Statements")}}</div>
+
+<p>Het <strong><code>export</code></strong> statement wordt gebruikt bij het maken van JavaScript modules om functies, objecten of primitieve waarden te exporteren van de module zodat deze gebruikt kunnen worden door andere programmas met het {{jsxref("Statements/import", "import")}} statement.</p>
+
+<p>Geëxporteerde modules worden altijd uitgevoerd in {{jsxref("Strict_mode","strict mode")}}, ongeacht of dat is aangegeven. Het export-statement kan niet gebruikt worden in<em> </em>ingevoegde scripts.</p>
+
+<div class="note">
+<p>Deze functie is momenteel niet geïmplementeerd in Internet Explorer, Android webview en Samsung Internet. Het is wel geïmplementeerd in 'transpilers' zoals de <a href="https://github.com/google/traceur-compiler">Traceur Compiler</a>, <a href="http://babeljs.io/">Babel</a> of <a href="https://github.com/rollup/rollup">Rollup</a>.</p>
+</div>
+
+<h2 id="Syntax">Syntax</h2>
+
+<pre class="brush: js line-numbers  language-js">export { <var>name1</var>, <var>name2</var>, …, <var>nameN</var> };
+export { <var>variable1</var> as <var>name1</var>, <var>variable2</var> as <var>name2</var>, …, <var>nameN</var> };
+export let <var>name1</var>, <var>name2</var>, …, <var>nameN</var>; // also var, function
+export let <var>name1</var> = …, <var>name2</var> = …, …, <var>nameN</var>; // also var, const
+<code class="language-js">export function FunctionName() {...}
+export class ClassName {...}</code>
+
+export default <em>expression</em>;
+export default function (…) { … } // also class, function*
+export default function name1(…) { … } // also class, function*
+export { <var>name1</var> as default, … };
+
+export * from …;
+export { <var>name1</var>, <var>name2</var>, …, <var>nameN</var> } from …;
+export { <var>import1</var> as <var>name1</var>, <var>import2</var> as <var>name2</var>, …, <var>nameN</var> } from …;
+<code class="language-js">export { default } from …;</code></pre>
+
+<p> </p>
+
+<dl>
+ <dt><code>nameN</code></dt>
+ <dd>Identificator die geëxporteerd moet worden (zodat het geïmporteerd kan worden via {{jsxref("Statements/import", "import")}} in een ander script).</dd>
+</dl>
+
+<h2 id="Beschrijving">Beschrijving</h2>
+
+<p>Er zijn 2 verschillende types van export: <strong>named </strong>en <strong>default</strong>. Er kunnen meerdere <em>named exports</em> per module bestaan, maar slechts een <em>default export</em>. Elk type komt overeen met een van de bovenstaande syntaxen.</p>
+
+<ul>
+ <li>Genoemde exports (named exports):
+  <pre class="brush: js">// exporteert een eerder gedeclareerde functie
+export { myFunction };
+
+// exporteert een constante
+export const foo = Math.sqrt(2);</pre>
+ </li>
+ <li>Standaard exports (default exports) (function):
+  <pre class="brush: js">export default function() {} </pre>
+ </li>
+ <li>Standaard exports (default exports) (class):
+  <pre class="brush: js">export default class {} </pre>
+ </li>
+</ul>
+
+<p>Genoemde exports zijn handig om verschillende waardes te exporteren. Tijdens de import is het verplicht om dezelfde naam als het overeenkomende object te gebruiken.</p>
+
+<p>Maar een standaard export kan geïmporteerd worden met enige andere naam, bijvoorbeeld:</p>
+
+<pre class="syntaxbox">let k; export default k = 12; // in bestand test.js
+
+import m from './test' // let op dat we de vrijheid hebben om import m te gebruiken in plaats van import k, omdat k een default export is.
+
+console.log(m);        // Zal '12' in de console laten zien
+</pre>
+
+<p>Er kan slechts 1 standaard export zijn.</p>
+
+<p>De volgende syntax exporteert geen standaard export van de geïmporteerde module:</p>
+
+<pre>export * from …;</pre>
+
+<p>Gebruik de volgende syntax als de standaard export nodig is:</p>
+
+<pre class="brush: js line-numbers  language-js"><code class="language-js">export {default} from 'mod';</code></pre>
+
+<h2 id="Voorbeelden">Voorbeelden</h2>
+
+<h3 id="Genoemde_(named)_exports_gebruiken">Genoemde (named) exports gebruiken</h3>
+
+<p>In de module zouden we de volgende code kunnen gebruiken:</p>
+
+<pre class="brush: js">// module "my-module.js"
+function cube(x) {
+  return x * x * x;
+}
+const foo = Math.PI + Math.SQRT2;
+export { cube, foo };
+</pre>
+
+<p>Op deze manier zouden we in een ander script deze code kunnen hebben:</p>
+
+<pre class="brush: js">import { cube, foo } from 'my-module';
+console.log(cube(3)); // 27
+console.log(foo);    // 4.555806215962888</pre>
+
+<h3 id="De_standaard_(default)_export_gebruiken">De standaard (default) export gebruiken</h3>
+
+<p>Als we een enkele waarde willen exporteren of willen terugvallen op een waarde voor onze module zouden we een standaard (default) export kunnen gebruiken:</p>
+
+<pre class="brush: js">// module "my-module.js"
+export default function cube(x) {
+  return x * x * x;
+}
+</pre>
+
+<p>Op die manier zal het vanzelfsprekend zijn om in een ander script de standaard (default) export te importeren:</p>
+
+<pre class="brush: js">import cube from 'my-module';
+console.log(cube(3)); // 27
+</pre>
+
+<p>Merk op dat het niet mogelijk is om <code>var</code>, <code>let</code> of <code>const</code> te gebruiken met <code>export default</code>.</p>
+
+<h2 id="Specificaties">Specificaties</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('ES2015', '#sec-exports', 'Exports')}}</td>
+   <td>{{Spec2('ES2015')}}</td>
+   <td>Initiële definitie.</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('ESDraft', '#sec-exports', 'Exports')}}</td>
+   <td>{{Spec2('ESDraft')}}</td>
+   <td> </td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_compatibiliteit">Browser compatibiliteit</h2>
+
+<div class="hidden">De compatibiliteitstabel op deze pagina is gegenereerd van gestructureerde data. Indien u wenst bij te dragen aan deze data, bekijk dan <a href="https://github.com/mdn/browser-compat-data">https://github.com/mdn/browser-compat-data</a> en stuur ons een pull request.</div>
+
+<p>{{Compat("javascript.statements.export")}}</p>
+
+<h2 id="Bekijk_ook">Bekijk ook</h2>
+
+<ul>
+ <li>{{jsxref("Statements/import", "import")}}</li>
+ <li><a href="https://hacks.mozilla.org/2015/08/es6-in-depth-modules/">ES6 in Depth: Modules</a>, Hacks blog post by Jason Orendorff</li>
+ <li><a href="http://exploringjs.com/es6/ch_modules.html">Axel Rauschmayer's book: "Exploring JS: Modules"</a></li>
+</ul>
diff --git a/files/nl/web/javascript/reference/statements/index.html b/files/nl/web/javascript/reference/statements/index.html
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+---
+title: Statements and declarations
+slug: Web/JavaScript/Reference/Statements
+tags:
+  - JavaScript
+  - NeedsTranslation
+  - Reference
+  - TopicStub
+  - statements
+translation_of: Web/JavaScript/Reference/Statements
+---
+<div>{{jsSidebar("Statements")}}</div>
+
+<p>JavaScript applications consist of statements with an appropriate syntax. A single statement may span multiple lines. Multiple statements may occur on a single line if each statement is separated by a semicolon. This isn't a keyword, but a group of keywords.</p>
+
+<h2 id="Statements_and_declarations_by_category">Statements and declarations by category</h2>
+
+<p>For an alphabetical listing see the sidebar on the left.</p>
+
+<h3 id="Control_flow">Control flow</h3>
+
+<dl>
+ <dt>{{jsxref("Statements/block", "Block")}}</dt>
+ <dd>A block statement is used to group zero or more statements. The block is delimited by a pair of curly brackets.</dd>
+ <dt>{{jsxref("Statements/break", "break")}}</dt>
+ <dd>Terminates the current loop, switch, or label statement and transfers program control to the statement following the terminated statement.</dd>
+ <dt>{{jsxref("Statements/continue", "continue")}}</dt>
+ <dd>Terminates execution of the statements in the current iteration of the current or labeled loop, and continues execution of the loop with the next iteration.</dd>
+ <dt>{{jsxref("Statements/Empty", "Empty")}}</dt>
+ <dd>An empty statement is used to provide no statement, although the JavaScript syntax would expect one.</dd>
+ <dt>{{jsxref("Statements/if...else", "if...else")}}</dt>
+ <dd>Executes a statement if a specified condition is true. If the condition is false, another statement can be executed.</dd>
+ <dt>{{jsxref("Statements/switch", "switch")}}</dt>
+ <dd>Evaluates an expression, matching the expression's value to a case clause, and executes statements associated with that case.</dd>
+ <dt>{{jsxref("Statements/throw", "throw")}}</dt>
+ <dd>Throws a user-defined exception.</dd>
+ <dt>{{jsxref("Statements/try...catch", "try...catch")}}</dt>
+ <dd>Marks a block of statements to try, and specifies a response, should an exception be thrown.</dd>
+</dl>
+
+<h3 id="Declarations">Declarations</h3>
+
+<dl>
+ <dt>{{jsxref("Statements/var", "var")}}</dt>
+ <dd>Declares a variable, optionally initializing it to a value.</dd>
+ <dt>{{jsxref("Statements/let", "let")}}</dt>
+ <dd>Declares a block scope local variable, optionally initializing it to a value.</dd>
+ <dt>{{jsxref("Statements/const", "const")}}</dt>
+ <dd>Declares a read-only named constant.</dd>
+</dl>
+
+<h3 id="Functions_and_classes">Functions and classes</h3>
+
+<dl>
+ <dt>{{jsxref("Statements/function", "function")}}</dt>
+ <dd>Declares a function with the specified parameters.</dd>
+ <dt>{{jsxref("Statements/function*", "function*")}}</dt>
+ <dd>Generators functions enable writing <a href="/en-US/docs/Web/JavaScript/Guide/The_Iterator_protocol">iterators</a> more easily.</dd>
+ <dt>{{jsxref("Statements/async_function", "async function")}}</dt>
+ <dd>Declares an async function with the specified parameters.</dd>
+ <dt>{{jsxref("Statements/return", "return")}}</dt>
+ <dd>Specifies the value to be returned by a function.</dd>
+ <dt>{{jsxref("Statements/class", "class")}}</dt>
+ <dd>Declares a class.</dd>
+</dl>
+
+<h3 id="Iterations">Iterations</h3>
+
+<dl>
+ <dt>{{jsxref("Statements/do...while", "do...while")}}</dt>
+ <dd>Creates a loop that executes a specified statement until the test condition evaluates to false. The condition is evaluated after executing the statement, resulting in the specified statement executing at least once.</dd>
+ <dt>{{jsxref("Statements/for", "for")}}</dt>
+ <dd>Creates a loop that consists of three optional expressions, enclosed in parentheses and separated by semicolons, followed by a statement executed in the loop.</dd>
+ <dt>{{deprecated_inline}} {{non-standard_inline()}} {{jsxref("Statements/for_each...in", "for each...in")}}</dt>
+ <dd>Iterates a specified variable over all values of object's properties. For each distinct property, a specified statement is executed.</dd>
+ <dt>{{jsxref("Statements/for...in", "for...in")}}</dt>
+ <dd>Iterates over the enumerable properties of an object, in arbitrary order. For each distinct property, statements can be executed.</dd>
+ <dt>{{jsxref("Statements/for...of", "for...of")}}</dt>
+ <dd>Iterates over iterable objects (including {{jsxref("Global_Objects/Array","arrays","","true")}}, array-like objects, <a href="/en-US/docs/JavaScript/Guide/Iterators_and_Generators">iterators and generators</a>), invoking a custom iteration hook with statements to be executed for the value of each distinct property.</dd>
+ <dt>{{jsxref("Statements/while", "while")}}</dt>
+ <dd>Creates a loop that executes a specified statement as long as the test condition evaluates to true. The condition is evaluated before executing the statement.</dd>
+</dl>
+
+<h3 id="Others">Others</h3>
+
+<dl>
+ <dt>{{jsxref("Statements/debugger", "debugger")}}</dt>
+ <dd>Invokes any available debugging functionality. If no debugging functionality is available, this statement has no effect.</dd>
+ <dt>{{jsxref("Statements/export", "export")}}</dt>
+ <dd>Used to export functions to make them available for imports in external modules, another scripts.</dd>
+ <dt>{{jsxref("Statements/import", "import")}}</dt>
+ <dd>Used to import functions exported from an external module, another script.</dd>
+ <dt>{{jsxref("Statements/label", "label")}}</dt>
+ <dd>Provides a statement with an identifier that you can refer to using a <code>break</code> or <code>continue</code> statement.</dd>
+</dl>
+
+<dl>
+ <dt>{{deprecated_inline}} {{jsxref("Statements/with", "with")}}</dt>
+ <dd>Extends the scope chain for a statement.</dd>
+</dl>
+
+<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('ES1', '#sec-12', 'Statements')}}</td>
+   <td>{{Spec2('ES1')}}</td>
+   <td>Initial definition</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('ES3', '#sec-12', 'Statements')}}</td>
+   <td>{{Spec2('ES3')}}</td>
+   <td> </td>
+  </tr>
+  <tr>
+   <td>{{SpecName('ES5.1', '#sec-12', 'Statements')}}</td>
+   <td>{{Spec2('ES5.1')}}</td>
+   <td> </td>
+  </tr>
+  <tr>
+   <td>{{SpecName('ES6', '#sec-ecmascript-language-statements-and-declarations', 'ECMAScript Language: Statements and Declarations')}}</td>
+   <td>{{Spec2('ES6')}}</td>
+   <td>New: function*, let, for...of, yield, class</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('ESDraft', '#sec-ecmascript-language-statements-and-declarations', 'ECMAScript Language: Statements and Declarations')}}</td>
+   <td>{{Spec2('ESDraft')}}</td>
+   <td> </td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_compatibility">Browser compatibility</h2>
+
+
+
+<p>{{Compat("javascript.statements")}}</p>
+
+<h2 id="See_also">See also</h2>
+
+<ul>
+ <li><a href="/en-US/docs/Web/JavaScript/Reference/Operators">Operators</a></li>
+</ul>