摘要: repeat() includes() var str = "abc" console.log(str.includes("a")) //true console.log(str.repeat(3)); //abcabc console.log(str.repeat()) startsWith() 阅读全文
posted @ 2020-11-10 18:47 橘雎 阅读(101) 评论(0) 推荐(0) 编辑