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| author | Florian Merz <me@fiji-flo.de> | 2021-02-11 14:45:12 +0100 |
|---|---|---|
| committer | Florian Merz <me@fiji-flo.de> | 2021-02-11 14:45:12 +0100 |
| commit | cb9e359a51c3249d8f5157db69d43fd413ddeda6 (patch) | |
| tree | ae3040d626c3b5717da5bda2af9f0a9ff9bd389f /files/ca/web/javascript/reference/global_objects/math/floor | |
| parent | 8260a606c143e6b55a467edf017a56bdcd6cba7e (diff) | |
| download | translated-content-cb9e359a51c3249d8f5157db69d43fd413ddeda6.tar.gz translated-content-cb9e359a51c3249d8f5157db69d43fd413ddeda6.tar.bz2 translated-content-cb9e359a51c3249d8f5157db69d43fd413ddeda6.zip | |
unslug ca: move
Diffstat (limited to 'files/ca/web/javascript/reference/global_objects/math/floor')
| -rw-r--r-- | files/ca/web/javascript/reference/global_objects/math/floor/index.html | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/files/ca/web/javascript/reference/global_objects/math/floor/index.html b/files/ca/web/javascript/reference/global_objects/math/floor/index.html new file mode 100644 index 0000000000..4a83b8d0e8 --- /dev/null +++ b/files/ca/web/javascript/reference/global_objects/math/floor/index.html @@ -0,0 +1,194 @@ +--- +title: Math.floor() +slug: Web/JavaScript/Referencia/Objectes_globals/Math/floor +translation_of: Web/JavaScript/Reference/Global_Objects/Math/floor +--- +<div>{{JSRef("Global_Objects", "Math")}}</div> + +<h2 id="Summary" name="Summary">Resum</h2> + +<p>La funció <strong><code>Math.floor()</code></strong> retorna el nombre més gran dels nombres més petits o iguals a un nombre donat.</p> + +<h2 id="Syntax" name="Syntax">Sintaxi</h2> + +<pre class="syntaxbox"><code>Math.floor(<var>x</var>)</code></pre> + +<h3 id="Parameters" name="Parameters">Paràmetres</h3> + +<dl> + <dt><code>x</code></dt> + <dd>Un nombre.</dd> +</dl> + +<h2 id="Description" name="Description">Descripció</h2> + +<p>Degut a que <code>floor()</code> és un mètode estàtic de <code>Math</code>, sempre s'utilitza com a <code>Math.floor()</code>, en comptes de com a mètode d'una instància de <code>Math</code> (<code>Math</code> no és un constructor).</p> + +<h2 id="Examples" name="Examples">Exemples</h2> + +<h3 id="Example:_Using_Math.floor" name="Example:_Using_Math.floor">Exemple: Utilitzar <code>Math.floor()</code></h3> + +<pre class="brush: js">Math.floor( 45.95); // 45 +Math.floor(-45.95); // -46 +</pre> + +<h3 id="Example:_Decimal_adjustment" name="Example:_Decimal_adjustment">Exemple: Ajust decimal</h3> + +<pre class="brush: js">// Closure +(function() { + /** + * Ajust decimal d'un nombre. + * + * @param {String} type El tipus d'ajust. + * @param {Number} value El nombre. + * @param {Integer} exp L'exponent (L'algoritme en base 10 de la base d'ajust + * @returns {Number} El valor ajustat. + */ + function decimalAdjust(type, value, exp) { + // Si exp és undefined o zero... + if (typeof exp === 'undefined' || +exp === 0) { + return Math[type](value); + } + value = +value; + exp = +exp; + // Si value no és un nombre o exp no és un nombre sencer... + if (isNaN(value) || !(typeof exp === 'number' && exp % 1 === 0)) { + return NaN; + } + // Desplaçament + value = value.toString().split('e'); + value = Math[type](+(value[0] + 'e' + (value[1] ? (+value[1] - exp) : -exp))); + // Desfer el desplaçament + value = value.toString().split('e'); + return +(value[0] + 'e' + (value[1] ? (+value[1] + exp) : exp)); + } + + // Arrodoniment decimal + if (!Math.round10) { + Math.round10 = function(value, exp) { + return decimalAdjust('round', value, exp); + }; + } + // Arrodoniment decimal a la baixa + if (!Math.floor10) { + Math.floor10 = function(value, exp) { + return decimalAdjust('floor', value, exp); + }; + } + // Arrodoniment decimal a l'alça + if (!Math.ceil10) { + Math.ceil10 = function(value, exp) { + return decimalAdjust('ceil', value, exp); + }; + } +})(); + +// Arrodoniments +Math.round10(55.55, -1); // 55.6 +Math.round10(55.549, -1); // 55.5 +Math.round10(55, 1); // 60 +Math.round10(54.9, 1); // 50 +Math.round10(-55.55, -1); // -55.5 +Math.round10(-55.551, -1); // -55.6 +Math.round10(-55, 1); // -50 +Math.round10(-55.1, 1); // -60 +// Arrodoniments a la baixa +Math.floor10(55.59, -1); // 55.5 +Math.floor10(59, 1); // 50 +Math.floor10(-55.51, -1); // -55.6 +Math.floor10(-51, 1); // -60 +// Arrodoniments a l'alça +Math.ceil10(55.51, -1); // 55.6 +Math.ceil10(51, 1); // 60 +Math.ceil10(-55.59, -1); // -55.5 +Math.ceil10(-59, 1); // -50 +</pre> + +<h2 id="Specifications" name="Specifications">Especificacions</h2> + +<table class="standard-table"> + <tbody> + <tr> + <th scope="col">Especificació</th> + <th scope="col">Estat</th> + <th scope="col">Comentaris</th> + </tr> + <tr> + <td>ECMAScript 1a Edició</td> + <td>Standard</td> + <td>Definició inicial. Implementat a JavaScript 1.0.</td> + </tr> + <tr> + <td>{{SpecName('ES5.1', '#sec-15.8.2.9', 'Math.floor')}}</td> + <td>{{Spec2('ES5.1')}}</td> + <td> </td> + </tr> + <tr> + <td>{{SpecName('ES6', '#sec-math.floor', 'Math.floor')}}</td> + <td>{{Spec2('ES6')}}</td> + <td> </td> + </tr> + </tbody> +</table> + +<h2 id="Browser_compatibility" name="Browser_compatibility">Compatibilitat amb navegadors</h2> + +<div>{{CompatibilityTable}}</div> + +<div id="compat-desktop"> +<table class="compat-table"> + <tbody> + <tr> + <th>Característica</th> + <th>Chrome</th> + <th>Firefox (Gecko)</th> + <th>Internet Explorer</th> + <th>Opera</th> + <th>Safari</th> + </tr> + <tr> + <td>Suport bàsic</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>Característica</th> + <th>Android</th> + <th>Chrome for Android</th> + <th>Firefox Mobile (Gecko)</th> + <th>IE Mobile</th> + <th>Opera Mobile</th> + <th>Safari Mobile</th> + </tr> + <tr> + <td>Suport bàsic</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="See_also" name="See_also">Vegeu també</h2> + +<ul> + <li>{{jsxref("Math.abs()")}}</li> + <li>{{jsxref("Math.ceil()")}}</li> + <li>{{jsxref("Math.round()")}}</li> + <li>{{jsxref("Math.sign()")}} {{experimental_inline}}</li> + <li>{{jsxref("Math.trunc()")}} {{experimental_inline}}</li> +</ul> |
