向JavaScript的数组中添加元素的方法小结_基础知识

在数组的开头添加新元素 - unshift()
源代码:

Click the button to add elements to the array.

Try it

Note: The unshift() method does not work properly in Internet Explorer 8 and earlier, the values will be inserted, but the return value will be undefined.


  

测试结果:

Lemon,Pineapple,Banana,Orange,Apple,Mango

在数组的第2位置添加一个元素 - splice()
源代码:

​
Click the button to add elements to the array.
​
Try it
​

​

     

测试结果:

Banana,Orange,Lemon,Kiwi,Apple,Mango

数组的末尾添加新的元素 - push()
源代码:

​
Click the button to add a new element to the array.
​
Try it
​

​

   

测试结果:

Banana,Orange,Apple,Mango,Kiwi