diff options
| author | Florian Merz <me@fiji-flo.de> | 2021-02-11 14:46:50 +0100 |
|---|---|---|
| committer | Florian Merz <me@fiji-flo.de> | 2021-02-11 14:46:50 +0100 |
| commit | a55b575e8089ee6cab7c5c262a7e6db55d0e34d6 (patch) | |
| tree | 5032e6779a402a863654c9d65965073f09ea4182 /files/es/web/javascript/reference/global_objects/map/has | |
| parent | 8260a606c143e6b55a467edf017a56bdcd6cba7e (diff) | |
| download | translated-content-a55b575e8089ee6cab7c5c262a7e6db55d0e34d6.tar.gz translated-content-a55b575e8089ee6cab7c5c262a7e6db55d0e34d6.tar.bz2 translated-content-a55b575e8089ee6cab7c5c262a7e6db55d0e34d6.zip | |
unslug es: move
Diffstat (limited to 'files/es/web/javascript/reference/global_objects/map/has')
| -rw-r--r-- | files/es/web/javascript/reference/global_objects/map/has/index.html | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/files/es/web/javascript/reference/global_objects/map/has/index.html b/files/es/web/javascript/reference/global_objects/map/has/index.html new file mode 100644 index 0000000000..c556a00dae --- /dev/null +++ b/files/es/web/javascript/reference/global_objects/map/has/index.html @@ -0,0 +1,65 @@ +--- +title: Map.prototype.has() +slug: Web/JavaScript/Referencia/Objetos_globales/Map/has +translation_of: Web/JavaScript/Reference/Global_Objects/Map/has +--- +<div>{{JSRef}}</div> + +<p>El método <code><strong>has()</strong></code> devuelve un booleano indicando si el elemento con la llave especificada existe o no.</p> + +<div>{{EmbedInteractiveExample("pages/js/map-prototype-has.html")}}</div> + + + +<h2 id="Sintaxis">Sintaxis</h2> + +<pre class="syntaxbox notranslate"><var>myMap</var>.has(<var>key</var>)</pre> + +<h3 id="Parameteros">Parameteros</h3> + +<dl> + <dt><code><var>key</var></code></dt> + <dd>La llave del elemento a probar si esta presente en el objeto <code>Map</code>.</dd> +</dl> + +<h3 id="Valor_devuelto">Valor devuelto</h3> + +<p><code>true</code> si el elemento con la llave especificada existe en el objeto <code>Map</code>; de lo contrario <code>false</code>.</p> + +<h2 id="Ejemplos">Ejemplos</h2> + +<h3 id="Usando_has">Usando <code>has()</code></h3> + +<pre class="brush: js notranslate">let myMap = new Map() +myMap.set('bar', "foo") + +myMap.has('bar') // returns true +myMap.has('baz') // returns false +</pre> + +<h2 id="Especificaciones">Especificaciones</h2> + +<table class="standard-table"> + <tbody> + <tr> + <th scope="col">Especificación</th> + </tr> + <tr> + <td>{{SpecName('ESDraft', '#sec-map.prototype.has', 'Map.prototype.has')}}</td> + </tr> + </tbody> +</table> + +<h2 id="Browser_compatibility">Browser compatibility</h2> + + + +<p>{{Compat("javascript.builtins.Map.has")}}</p> + +<h2 id="See_also">See also</h2> + +<ul> + <li>{{jsxref("Map")}}</li> + <li>{{jsxref("Map.prototype.set()")}}</li> + <li>{{jsxref("Map.prototype.get()")}}</li> +</ul> |
