splice方法可以在数组的任何位置添加或删除元素。它的语法是array.splice(start, deleteCount, item1, item2, ...),其中start是开始修改的位置(索引),deleteCount是要删除的元素数量(如果要添加元素则设为0),item1, item2, ...是要添加的新元素。 javascript array.splice(2, 0, "three"); 使用Array.prot...
//在数组指定位置插入varfruits=["Banana","Orange","Apple","Mango"];fruits.splice(2,0,"Lemon","Kiwi");//输出结果//Banana, Orange, Lemon, Kiwi, Apple, Mango//在数组开头插入varshuiguo=["Banana","Orange","Apple","Mango"];shuiguo.splice(0,0,"Lemon");//输出结果//Lemon, Banana, Orang...
var array = ["one", "two", "four"];console.log(JSON.stringify(array));//["one","two","four"]//在指定位置添加元素,第⼀个参数指定位置,第⼆个参数指定要删除的元素,如果为0,则追加 array.splice(2, 0, "three");console.log(JSON.stringify(array));//["one","two","three","...
["one", "two", "four"]; console.log(JSON.stringify(array));//["one","two","four"] //在指定位置添加元素,第一个参数指定位置,第二个参数指定要删除的元素,如果为0,则追加 array.splice(2, 0, "three"); console.log(JSON.stringify(array));//["one","two","three","four"] 分类:...