随笔分类 - 前端歌谣--学习篇-常规知识点总结
歌谣--常规知识点总结
摘要:<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta name="viewport" content
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摘要:function getObj() { let obj = { sex:"男", age:18 }; let val = ""; //此处val是安全的,外部是无法修改的 let o = Object.defineProperty(obj, "key", { configurable: true,
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