let s1 = "()";
let s2 = "()[]{}";
let s3 = "(]";
let s4 = "{[]}";
let s5 = "([)]";
let s6 = "{[[]{}]}()()";
 
function checkBrackets(str) {
  // Ваш код здесь
}
 
console.log(checkBrackets(s1)); // true
console.log(checkBrackets(s2)); // true
console.log(checkBrackets(s3)); // false
console.log(checkBrackets(s4)); // true
console.log(checkBrackets(s5)); // false
console.log(checkBrackets(s6)); // true

function checkBrackets(str) {
  const regX = /{}|\(\)|\[\]/gm;
  const replaced = str.replace(regX, "");
 
  if (str === replaced) {
    return str == "";
  }
 
  return checkBrackets(replaced);
}