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

 

posted @ 2020-02-19 10:42  PromiseOne  阅读(30939)  评论(0)  编辑  收藏  举报