如下,想看结果按下f12,复制代码
console.log(new Set([...document.querySelectorAll("*")].map(tag=>tag.tagName)).size)
Object.entries([...document.querySelectorAll("*")].map(tag=>tag.tagName).reduce((ret, i)=>{
ret[i] = (ret[i] || 0) + 1;
return ret;
}, {})).sort((a, b)=>(b[1] - a[1])).slice(0, 3)
.map(a=>(`${a[0]}: ${a[1]}次`)).join(', ')
评论(0)