ES7 新特性
ES7 新特性
includes 检测数组中是否存在
const mingzhu = ["西游记", "红楼梦", "三国演义", "水浒传"]; // 判断 console.log(mingzhu.includes("西游记")); // true console.log(mingzhu.includes("金瓶梅")); // false
乘方
console.log(2 10); // 1024 console.log(Math.pow(2, 10)); // 1024
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