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  1. // iterative
  2. function getAlter(arr){
  3. 	let res = [];
  4.  
  5. 	for(i=0;i<arr.length;i+=2){
  6. 	res.push(arr[i]);
  7.  }
  8.  return res;
  9. }
  10. const arr = [10,20,30,40,50];
  11. const res = getAlter(arr);
  12. console.log(res.join(" "));
  13.  
Success #stdin #stdout 0.03s 18776KB
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10 30 50
https://ideone.com/iPFA9u
language:
JavaScript (SMonkey 60.2.3)
created:
3 days ago
visibility:
public

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