Format the number to a string space padded every 3 decimals

formatNumber.js

/**
 * Format the number to a string space padded every 3 decimals
 */
export const formatNumber = (n, suffix="")=>{
  let num = String(n).split(".")[0];
  let decimal = String(n).split(".")[1];
  decimal = decimal ? "," + decimal : "";
  let numStr = "";
  let l = num.length-1;
  let i = num.length;
  let pos = 0;

  for( i; i--;){
    pos = l - i;
    numStr =  pos%3 === 0 ? num.charAt(i) + " " + numStr : num.charAt(i) + numStr;
  }
  return `${numStr.trim()}${decimal}${suffix}`;
}