es6判断数组是否包含某个元素

1 let arr= ['baidu', 'google', 'taobao'];
2 
3 console.log(arr.includes('baidu'));       //true
4 console.log(arr.includes('baidu1'));     //false
原文地址:https://www.cnblogs.com/Blogzlj/p/12330170.html