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  1. function sequence(start, step) {
  2. 	var x = 0;
  3. 	return function () {
  4. 		start = start || 0;
  5. 		step = step || 1;
  6. 		var y = start + (step * x)
  7. 		x++;
  8. 		return y;
  9. 	}
  10. }
  11.  
  12.  
  13. function take(gen, x) {
  14. 	var arr = [];
  15. 	for (var i = 0; i < x; i++) {
  16. 		arr[i] = gen();
  17. 	};
  18. 	return arr;
  19. }
  20.  
  21.  
  22.  
  23. var gen2 = sequence(0, 2);
  24. console.log(take(gen2, 5)); // [0, 2, 4, 6, 8 ]
Runtime error #stdin #stdout #stderr 0.49s 321920KB
comments (?)
stdin 
Standard input is empty
stdout 
Standard output is empty
stderr 
js: uncaught JavaScript runtime exception: ReferenceError: "console" is not defined.
https://ideone.com/vdUcmE
language:
JavaScript (rhino 1.7.9)
created:
8 years ago
visibility:
public

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