Run results for: reduce vs forEach vs for loop on a string

Test name	Executions per second
✓ Array.prototype.reduce.call()	55,167 Ops/sec
Array.prototype.forEach.call()	50,100 Ops/sec
Conventional for loop	47,123 Ops/sec

Script Preparation code:

var strToConvert = "yr89vi083hf*/:<>?\\|*/:<>?\\|*/:<>?\\|*/:<>?\\|*/:<>?\\|*/:<>?\\|984hijhfgvjhngkjqherkjfherh";

String.prototype.validFNCharReduce=function(o,e){
  const HW='"*/:<>?\\|',FW='＂＊／：＜＞？＼＼｜',F=String.fromCharCode;
  return Array.prototype.reduce.call(this,
           o && Object.hasOwn(o,"char") && (e=o.char, !0) ? (r,c) => r + (HW.includes(c)?e:c)                        :
           o?.reverse                                     ? (r,c) => r + (FW.includes(c)?F(c.charCodeAt(0)-65248):c) :
                                                            (r,c) => r + (HW.includes(c)?F(c.charCodeAt(0)+65248):c) ,
         "")
};
String.prototype.validFNCharForEach=function(o,e){
  const HW='"*/:<>?\\|',FW='＂＊／：＜＞？＼＼｜',F=String.fromCharCode;
  let r="";i
  Array.prototype.forEach.call(this,
    o && Object.hasOwn(o,"char") && (e=o.char, !0) ? c => r += (HW.includes(c)?e:c)                        :
    o?.reverse                                     ? c => r += (FW.includes(c)?F(c.charCodeAt(0)-65248):c) :
                                                     c => r += (HW.includes(c)?F(c.charCodeAt(0)+65248):c)
  )
  return r
};
String.prototype.validFNCharForLoop=function(o){
  const h='"*/:<>?\\|',f='＂＊／：＜＞？＼＼｜',F=String.fromCharCode;
  let c,e,r="",i=0,T=this,l=T.length;
  if(o && Object.hasOwn(o,"char"))
    for(e=o.char;i<l;i++)
      r+=h.includes(c=T[i])?e:c;
  else if(o?.reverse)
    for(;i<l;i++)
      r+=f.includes(c=T[i])?F(T.charCodeAt(i)-65248):c;
  else
    for(;i<l;i++)
      r+=h.includes(c=T[i])?F(T.charCodeAt(i)+65248):c;
  return r
};

Run results for: reduce vs forEach vs for loop on a string

Array.prototype.reduce.call()

Array.prototype.forEach.call()

Conventional for loop