JSFiddle - React, Tailwind, and code Playground

JavaScript

function mutation(arr) {
  for (var i = 0; i < arr[0].length; i++) {
    if (arr[0].indexOf(arr[1][i]) >= 0) continue;
    else return false;
  }
  return true;
}

alert(mutation(["снеговик", "нос"]));