[JS] Find key from value

/ Published in: JavaScript
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/*Coded by Alessio Delmonti - www.tecnocrazia.com*/

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  1. function getKeyStr(j, ar){ //recupera la chiave partendo da il valore di un array
  2. var i;
  3. for(i in ar){
  4. if (j == ar[i]){
  5. return i;
  6. }
  7. else{continue;}
  8. }
  9. }

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