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  1. function getAlter(arr, idx, res){ 
  2. 	if(idx < arr.length){ 
  3. 		res.push(arr[idx]); 
  4. 		getAlter(arr, idx + 2, res); 
  5. 	}
  6. }
  7.  
  8. function getAltertwo(arr){
  9. 	let res = [];
  10. 	getAlter(arr, 0, res);
  11. 	return res;
  12. }
  13.  
  14. const arr = [10,20,30,40,50];
  15. let res = getAltertwo(arr);
  16. console.log(res);// your code goes here
Success #stdin #stdout 0.03s 18888KB
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Standard input is empty
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10,30,50
https://ideone.com/OxT6ng
language:
JavaScript (SMonkey 60.2.3)
created:
3 days ago
visibility:
public

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