要求：输入三种括号的字符串，检测其是否配对。

const checkBrackets = (str) => {

const checked = str.split('');

const stacks = [];

const result = checked.map(c => {

if (Object.keys(rules).some(r => r === c)) {

stacks.push(c);

return true;

} else {

const pop =  stacks.pop();

const key = Object.keys(rules).filter(r => r === pop)[0];

return rules[key] === c;

}

})

return result.every(r => r);

}

console.log(checkBrackets(')'));