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lgwebdream / FE-Interview

🔥🔥🔥 前端面试，独有前端面试题详解，前端面试刷题必备，1000+前端面试真题，Html、Css、JavaScript、Vue、React、Node、TypeScript、Webpack、算法、网络与安全、浏览器
https://lgwebdream.github.io/FE-Interview/
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~ #1086

Closed u2222223 closed 3 years ago

u2222223 commented 3 years ago

function getLength(str){ let set = new Set([...str]); return set.size }