如何从javascript变量中删除对象/数组?
答案 0 :(得分:1)
至于W3CSchool http://www.w3schools.com/jsref/jsref_pop.asp
您可以使用 .pop()
方法。
var fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.pop();
结果将是:
Banana,Orange,Apple
删除其他元素
要删除数组内索引处的某个元素,可以使用方法splice
所以例如
var myFish = ['angel', 'clown', 'drum', 'surgeon', 'apple'];
// removes 1 element from index 3
removed = myFish.splice(3, 1);
结果将是
myFish is ['angel', 'clown', 'drum', 'apple']
removed is ['surgeon']
请记住,数组是零索引的,因此第3个元素是元素编号2.