【求职】字节跳动前端

野性酷女 2023-02-19 01:26 14阅读 0赞

*  浏览器缓存
 *  事件循环
 *  输入url到页面现实过程
 *  transition和animation性能比较（应该问的是复合图层相关）
 *  promise实现原理
 *  getElementById和querySelector的区别和性能
 *  箭头函数
 *  generator，async，let，const
 *  csrf
 *  节流防抖
 *  闭包
 *  dom树转换成对象（虚拟dom树的构建）
 *  二叉树节点有0和1，将0的去除（leetcode第一题）
 *  flex布局
 *  https原理
 *  vue双向绑定原理
 *  key，diff算法
 *  算法（数组中两个值的和等于给定值，最好有最优解）
 *  性能优化
 *      async function async1() { 
            console.log('async1 start');
            await async2();
            console.log('async1 end');
        }
        async function async2() { 
            console.log('async2');
        }
        
        console.log('script start');
        setTimeout(function() { 
            console.log('setTimeout');
        }, 0);
        async1();
        new Promise(function(resolve) { 
            console.log('promise1');
            resolve();
        }
        ).then(function() { 
            console.log('promise2');
        });
        console.log('script end');
 *      document.body.addEventListener('click', () => { 
         Promise.resolve().then(()=>console.log(1));
         console.log(2)
        });
        document.body.addEventListener('click', () => { 
         Promise.resolve().then(()=>console.log(3));
         console.log(4)
        });
 *  promise.all方法实现，类似的finally done race

> 求职必备刷题官网：[https://github.com/bennyrhys/interview][https_github.com_bennyrhys_interview]  
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[https_github.com_bennyrhys_interview]: https://github.com/bennyrhys/interview
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