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inArray prototype

/ Published in: JavaScript
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  1. Array.prototype.inArray = function(valeur) {
  2. 	for (var i in this) { if (this[i] === valeur) return i; }
  3. 	return -1;
  4. }
  5.  
  6. /*
  7. in_array() renvois la clef si la valeur est présente, sinon, renvoie -1. \\ exemple : \\
  8.  
  9. var t=new Array("coucou","test","plop");
  10. alert(    t.in_array("test")   ); //affichera 1
  11. alert(    t.in_array("bobo")   ); //affichera -1
  12. */

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