pyramid pattern

Write a function generatePyramid(n) that returns an array of n strings representing a centered pyramid of height n using *.

• Each row is width 2n - 1 characters.
• Row i (1-indexed) contains 2i - 1 stars, centered with spaces on both sides.
• Use loops to construct the pattern.

###Examples

Input: n = 0
Output: []

Input: n = 1
Output: ["*"]

Input: n = 3
Output:
[
  "  *  ",
  " *** ",
  "*****"
]

Constraints

• n must be a finite integer >= 0.
• Return false for invalid inputs (non-integers, negatives, non-numbers, NaN, Infinity).
• Use loop-based construction (e.g., for/while).

Function Signature

function generatePyramid(n) {
  // Your code here
}

Test Cases

• Base: n = 0, n = 1
• Small heights: n = 2, n = 3, n = 5
• Invalid inputs: -1, 1.5, null, undefined, '3', {}, NaN, Infinity
• Row properties: width = 2n - 1, star counts follow 2i - 1, only spaces and *