Pastable version of Amélioration d'une fonction JS

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            <pre class="sunburst"><span style="color:#99CF50;">function</span> <span style="color:#89BDFF;">calcVitesse</span>(){
   <span style="color:#99CF50;">var</span> tempsTab <span style="color:#E28964;">=</span> <span style="color:#9B859D;">document</span>.<span style="color:#CF6A4C;">forms</span>.adminForm.temps.<span style="color:#CF6A4C;">value</span>.<span style="color:#DAD085;">split</span>(<span style="color:#65B042;"><span style="color:#65B042;">'</span>:<span style="color:#65B042;">'</span></span>);
   <span style="color:#99CF50;">var</span> kilometrage <span style="color:#E28964;">=</span> <span style="color:#9B859D;">document</span>.<span style="color:#CF6A4C;">forms</span>.adminForm.kilometrage.<span style="color:#CF6A4C;">value</span>;
   <span style="color:#99CF50;">var</span> temps <span style="color:#E28964;">=</span> <span style="color:#3387CC;">0</span>;
   
   <span style="color:#E28964;">for</span>(i <span style="color:#E28964;">=</span> <span style="color:#3387CC;">0</span>; i <span style="color:#E28964;">&lt;</span> tempsTab.<span style="color:#CF6A4C;">length</span>; i<span style="color:#E28964;">++</span>){
      <span style="color:#AEAEAE;font-style:italic;"><span style="color:#AEAEAE;font-style:italic;">//</span> Conversion de la valeur en entier</span>
      <span style="color:#99CF50;">var</span> t <span style="color:#E28964;">=</span> <span style="color:#DAD085;">parseInt</span>(tempsTab[i]);
      <span style="color:#AEAEAE;font-style:italic;"><span style="color:#AEAEAE;font-style:italic;">//</span> Teste si la valeur est un chiffre</span>

<span style="color:#E28964;">if</span>(<span style="color:#DAD085;">isNaN</span>(t)){
         <span style="color:#DAD085;">alert</span>(<span style="color:#65B042;"><span style="color:#65B042;">'</span>Seuls les chiffres sont acceptés<span style="color:#65B042;">'</span></span>);
         <span style="color:#E28964;">return</span>(<span style="color:#3387CC;">false</span>);
         }
         
      <span style="color:#AEAEAE;font-style:italic;"><span style="color:#AEAEAE;font-style:italic;">//</span> Teste si les minutes et (ou) les secondes sont comprises entre 0 et 59</span>
      <span style="color:#E28964;">if</span>(i <span style="color:#E28964;">!</span><span style="color:#E28964;">=</span> <span style="color:#3387CC;">0</span> <span style="color:#E28964;">&amp;</span><span style="color:#E28964;">&amp;</span> tempsTab[i] <span style="color:#E28964;">&gt;</span> <span style="color:#3387CC;">59</span>){
         <span style="color:#DAD085;">alert</span>(<span style="color:#65B042;"><span style="color:#65B042;">'</span>Les minutes ou les secondes ne peuvent excéder 59<span style="color:#65B042;">'</span></span>);
         <span style="color:#E28964;">return</span>(<span style="color:#3387CC;">false</span>);
         } <span style="color:#E28964;">else</span> {

<span style="color:#AEAEAE;font-style:italic;"><span style="color:#AEAEAE;font-style:italic;">//</span> Cumul du temps</span>
         heure <span style="color:#E28964;">=</span> ( <span style="color:#9B859D;">Number</span>( tempsTab[<span style="color:#3387CC;">0</span>] ) <span style="color:#E28964;">*</span> <span style="color:#3387CC;">3600</span>);
         minute <span style="color:#E28964;">=</span> ( <span style="color:#9B859D;">Number</span>( tempsTab[<span style="color:#3387CC;">1</span>] ) <span style="color:#E28964;">*</span> <span style="color:#3387CC;">60</span> );
         seconde <span style="color:#E28964;">=</span> ( <span style="color:#9B859D;">Number</span>( tempsTab[<span style="color:#3387CC;">2</span>] ));
         temps <span style="color:#E28964;">=</span> heure <span style="color:#E28964;">+</span> minute <span style="color:#E28964;">+</span> seconde;

moy <span style="color:#E28964;">=</span> (temps / kilometrage);
         moyH <span style="color:#E28964;">=</span> (<span style="color:#9B859D;">Math</span>.<span style="color:#DAD085;">floor</span>(moy/<span style="color:#3387CC;">3600</span>));
         moyM <span style="color:#E28964;">=</span> (<span style="color:#9B859D;">Math</span>.<span style="color:#DAD085;">floor</span>((moy <span style="color:#E28964;">-</span> (moyH <span style="color:#E28964;">*</span> <span style="color:#3387CC;">3600</span>))/<span style="color:#3387CC;">60</span>));
         moyS <span style="color:#E28964;">=</span> (<span style="color:#9B859D;">Math</span>.<span style="color:#DAD085;">floor</span>(moy <span style="color:#E28964;">-</span> ((moyH <span style="color:#E28964;">*</span> <span style="color:#3387CC;">3600</span>) <span style="color:#E28964;">+</span> (moyM <span style="color:#E28964;">*</span> <span style="color:#3387CC;">60</span>))));
         
         moyH <span style="color:#E28964;">=</span> (moyH <span style="color:#E28964;">&lt;</span> <span style="color:#3387CC;">10</span>) ? <span style="color:#65B042;"><span style="color:#65B042;">'</span>0<span style="color:#65B042;">'</span></span> <span style="color:#E28964;">+</span> moyH : moyH ;
         moyM <span style="color:#E28964;">=</span> (moyM <span style="color:#E28964;">&lt;</span> <span style="color:#3387CC;">10</span>) ? <span style="color:#65B042;"><span style="color:#65B042;">'</span>0<span style="color:#65B042;">'</span></span> <span style="color:#E28964;">+</span> moyM : moyM ;
         moyS <span style="color:#E28964;">=</span> (moyS <span style="color:#E28964;">&lt;</span> <span style="color:#3387CC;">10</span>) ? <span style="color:#65B042;"><span style="color:#65B042;">'</span>0<span style="color:#65B042;">'</span></span> <span style="color:#E28964;">+</span> moyS : moyS ;

moyenne <span style="color:#E28964;">=</span> moyH <span style="color:#E28964;">+</span> <span style="color:#65B042;"><span style="color:#65B042;">'</span>:<span style="color:#65B042;">'</span></span> <span style="color:#E28964;">+</span> moyM <span style="color:#E28964;">+</span> <span style="color:#65B042;"><span style="color:#65B042;">'</span>:<span style="color:#65B042;">'</span></span> <span style="color:#E28964;">+</span> moyS;
         vitesse <span style="color:#E28964;">=</span> (<span style="color:#9B859D;">Math</span>.<span style="color:#DAD085;">floor</span>((kilometrage / (temps / <span style="color:#3387CC;">3600</span>))<span style="color:#E28964;">*</span><span style="color:#3387CC;">1000</span>))/<span style="color:#3387CC;">1000</span>;
         <span style="color:#AEAEAE;font-style:italic;"><span style="color:#AEAEAE;font-style:italic;">//</span>alert ('moyenne ' + moyenne);</span>
         
         <span style="color:#9B859D;">document</span>.<span style="color:#CF6A4C;">forms</span>.adminForm.moyenne.readonly <span style="color:#E28964;">=</span> <span style="color:#3387CC;">false</span>;
         <span style="color:#9B859D;">document</span>.<span style="color:#CF6A4C;">forms</span>.adminForm.moyenne.<span style="color:#CF6A4C;">value</span> <span style="color:#E28964;">=</span> moyenne;
         <span style="color:#9B859D;">document</span>.<span style="color:#CF6A4C;">forms</span>.adminForm.moyenne.readonly <span style="color:#E28964;">=</span> <span style="color:#3387CC;">true</span>;
         
         <span style="color:#9B859D;">document</span>.<span style="color:#CF6A4C;">forms</span>.adminForm.vitesse.readonly <span style="color:#E28964;">=</span> <span style="color:#3387CC;">false</span>;
         <span style="color:#9B859D;">document</span>.<span style="color:#CF6A4C;">forms</span>.adminForm.vitesse.<span style="color:#CF6A4C;">value</span> <span style="color:#E28964;">=</span> vitesse;
         <span style="color:#9B859D;">document</span>.<span style="color:#CF6A4C;">forms</span>.adminForm.vitesse.readonly <span style="color:#E28964;">=</span> <span style="color:#3387CC;">true</span>;
           }
     }
   } 
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