First, you have to understand the meaning of the concept of "consonant cluster" linguistically: It's a consonant sequence sounds in a row. for example the word "blanket" is a consonant cluster with 2 consonant sounds "bl" .. and the word "strict" is a consonant cluster with 3 consonant sound "str" So, for words begin with consonant sounds, the sound should be moved to the end of this word. And the fetch will be based on the vowels that follow the consonant sound like this

function moveToEnd(string) {
  // the variable index is going to store the first vowel found in the string
  let index = 0;

  for (let c of string) {
    // Loop through the string until the first vowel has been found
    if ('aeiou'.includes(c)) {
      index = string.indexOf(c);
      // once we find the index of the first vowel we jump out of the loop
      break;
    }
  }
  // the new String
  return string.slice(index) + string.slice(0, index);
}
console.log(moveToEnd('blanket')) //---> output: ankletbl

let input = 'any string', vowel = [],consonant=[]
input.split('').forEach(e => {
if(/[aeiouwy]/gi.test(e)){
vowel.push(e)
}
else if(!/[aeiouwy]/gi.test(e)){consonant.push(e)}
})
console.log([...vowel,...consonant].toString())