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你的浏览器支持 ES6 吗? - ES-Checker
source link: http://ruanyf.github.io/es-checker/index.cn.html
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您的浏览器支持92%的 ECMAScript 6。
Variables click to collapse contents
✓ let 和 const 命令
✓ let命令的暂时性死区
✓ 不允许再次用const声明同一变量
✓ 解构赋值
✓ 扩展(...)运算符
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