based on fun cascading thing I used to do manually on twitter

ASCIIcade.txt

// OG
// https://jsfiddle.net/fitsum/40t8h2no/

// params
s:String = string
f:String = filler character
e:String = effect name; eg. "rev", "zig"
w:Number = horizontal spacing

const ASCIIcade = (s, f = null, e = null, w = 3) => {
  let out = "";
  let words = s.toUpperCase().split(" ");
  let maxlen = [...words].sort((a, b) => b.length - a.length)[0].length;
  let fill = !!f ? f : "+";
  let direction = false;
  words.forEach((word, idx) => {
    direction = !direction;
    word = !!f ? word + Array(maxlen - word.length).fill(f).join("") : word;
    word = e === "rev" || e === "zig" && direction === false ? word.split("").reverse().join("") : word;
    out += word.split("").reduce((acc, char, idx) => {
      let spaceCount = e === "rev" || e === "zig" && direction === false ? word.length * w - idx * w - w : idx * w;
      let spacer = Array(spaceCount).fill(" ").join("");
      return acc + spacer + char + "\n";
    }, "\n")
  });
  return out;
}

 
// eg

ASCIIcade("holy fuck")
// returns
H
    O
        L
            Y
F
    U
        C
            K
	    
	    
f("holy fuck",'', 'rev')
// returns	    

            Y
        L
    O
H

            K
        C
    U
F	    

//TODO: reverse order of chars in zig's zag
//TODO: much refactor
//FIXME: garbled UNICODE 
//TODO: in twitter app - note total char count