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1、pop方法从数组中删除最后一个元素,并返回该元素的值。
vararray=["cat","dog","cow","chicken","mouse"] varitem=array.pop() console.log(array)//["cat","dog","cow","chicken"] console.log(item)//mouse
2、push方法将一个或多个元素添加到数组的末尾,并返回该数组的新长度。
vararray=["football","basketball","badminton"] vari=array.push("golfball") console.log(array)//["football","basketball","badminton","golfball"] console.log(i)//4
3、 reverse方法将数组中元素的位置颠倒,并返回该数组。
vararray=[1,2,3,4,5] vararray2=array.reverse() console.log(array)//[5,4,3,2,1] console.log(array2===array)//true
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