anagram: to test if a word is an anagram or not

anagram.js

function anagram(str) {
  let arr = str.split('');
  let anaResult, anaValue, response;
  let finalArr = [];
  for (let index = 0; index < arr.length; index++) {
    let cleanNewArray = [];
    let result = true
    let resultArr = [];
    let compare = arr[index];
    for (let index = 0; index < arr.length; index++) {
      if (compare === arr[index]) {
        result = true
      } else {
        result = false
      }
      resultArr.push(result)
    }
    for (let index = 0; index < resultArr.length; index++) {
      cleanNewArray = resultArr.filter(function (cleanArray) {
        return cleanArray === true
      })
      if (cleanNewArray.length > 1) {
        anaResult = false;
      } else {
        anaResult = true
      }
    };
    finalArr.push(anaResult);
 }
   anaValue = finalArr.filter(function (k) {
    return k !== true
  })
  if (anaValue.length !== 0) { 
  response = false;
  } else {
    response =  true;
  }
  console.log(response);
  
return response;
}


anagram('abcdefghijklmnopqrstuvwxyz');