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ES2018 新增特性清单
source link: https://juejin.im/post/5b353534f265da595f0d3f7e
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Rest/Spread 属性 rest 将对象的剩余属性复制到一个新对象中。 let { x, y, ...z } = { x: 1, y: 2, a: 3, b: 4 }; x; // 1 y; // 2 z; // { a: 3, b: 4 } sprea
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