How to display pyramid using JavaScript?

Question

Here is the code to display pyramid but its not exactly producing required output.

Answer 1

To draw a pyramid on the console using JavaScript

1. Make each line have an odd number of fill characters.
2. Prepend spaces (or 'spacer characters') before each line, excluding the last.
   To do this:
   • Use repeat() to determine the number of spacer characters for each line. You do that by passing the number of lines - 1 as an argument.

Here's my solution

function drawPyramid(lines, fillChar, spacerChar) {
  let fillChars = '';
  let spacer = spacerChar || ' '; // Default spacer is ' '
  let spacerCount = lines;

  for (let i = 1; i <= lines; i++) {
      fillChars += fillChar;

  // Makes lines always have an odd number of fill characters
    if (i >= 2)
        fillChars = fillChar + fillChars;

    console.log(spacer.repeat(spacerCount - 1) + fillChars);
    spacerCount--;
  }
}

drawPyramid(4, '*');