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  1. Prepare
  2. Algorithms
  3. Strings
  4. Gemstones
  5. Discussions

Gemstones

  • jabarsadiqsyedi1
     + 0 comments

    JS:

    function gemstones(arr) {
    // Write your code here
   let alp=arr[0].split('');
   let newarr=new Set();
   for(let x=0;x<alp.length;x++){
      let found=true;
      for(let i=1;i<arr.length;i++){
       if(arr[i].indexOf(alp[x])==-1){
           found=false;
       }
     } 
     if(found){
         newarr.add(alp[x]);
     }
   }
   console.log(arr,newarr)
   return newarr.size;

    }