摘要：1.两个数组合并,并且排序 <script> let arr1 = ['2','6','12','15','23'] let arr2 = ['12','8','22','25','13','9','18'] let arrs = arr1.concat(arr2) function b(c,d){ 阅读全文

摘要：javaScript数据类型可分为两大类: 1:基本数据类型:number,string,boolean,undefined,null,symbol 2.引用类型:object(Array,Function,Data) 1.1:number类型 let age:number = 18 1.2:str 阅读全文