ES7参考---ES7相关
一、总结
一句话总结：
1、指数运算符(幂): **
2、Array.prototype.includes(value) : 判断数组中是否包含指定value
console.log(3 ** 3);//27
let arr = [1,2,3,4, 'abc'];
console.log(arr.includes(2));//true
console.log(arr.includes(5));//false
二、ES7相关
博客对应课程的视频位置：
1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8"> 5 <title>Title</title> 6 </head> 7 <body> 8 <!-- 9 1. 指数运算符(幂): ** 10 2. Array.prototype.includes(value) : 判断数组中是否包含指定value 11 12 --> 13 <script type="text/javascript"> 14 console.log(3 ** 3);//27 15 let arr = [1,2,3,4, 'abc']; 16 console.log(arr.includes(2));//true 17 console.log(arr.includes(5));//false 18 </script> 19 </body> 20 </html>