Build a Pyramid Generator - Build a Pyramid Generator

JavaScript
1

Tell us what’s happening:

it seems like join is pushing the elements to the right.
i created the right spaces, how can i join my elements now to display a pyramid?

Your code so far

function pyramid(pattern, rows, downwards){
  let pyr=[];
  let stringg=pattern.repeat(1+(rows-1)*2);
  let totalLength=stringg.length;
  for (let i=rows-1; i>=0;i--){
      pyr.push(stringg.substring(stringg.length-2*i-1));
  };
  let dif=0;
  for (let j=1;j<pyr.length;j++){
    if (pyr[j]<pyr[0]){
      dif=pyr[0].length-pyr[j].length
      for (let z=0;z<dif;z++){
        pyr[j]=` ${pyr[j]} `
      }     
    }   
  }

  if (!downwards){
    pyr=pyr.reverse();

  }
  console.log(pyr)
  pyr=pyr.join('\n')
  return pyr;
}

console.log(pyramid("o", 4, false))

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Challenge Information:

Build a Pyramid Generator - Build a Pyramid Generator

2

That’s strange, join method shouldn’t change anything on it own. Is there any way to confirm, whether join only joined lines together?

3

It seems the first for loop creates the “bricks” for the pyramid. Wich seems allright.
The second for loop is for the spacing, wich can please describe how it works?

There is a variable called totalLength wich is never used.