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  1. let n = 5;
  2. let string = "";
  3. // External loop
  4. for (let i = 1; i <= n; i++) {
  5.   // printing spaces
  6.   for (let j = 1; j <= n - i; j++) {
  7.     string += " ";
  8.   }
  9.   // printing star
  10.   for (let k = 0; k < 2 * i - 1; k++) {
  11.     string += "*";
  12.   }
  13.   string += "\n";
  14. }
  15. console.log(string);
  16.  
Success #stdin #stdout 0.04s 16880KB
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    *
   ***
  *****
 *******
*********
https://ideone.com/q9UUsk
language:
JavaScript (SMonkey 60.2.3)
created:
1 year ago
visibility:
public

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