如何推送到特定位置的数组?
我正在尝试有效地编写一个语句，该语句将推送到数组的位置 1，并将该位置中的任何内容或之后的内容推送回一个位置.
I'm trying to efficiently write a statement that pushes to position 1 of an array, and pushes whatever is in that position, or after it back a spot.
array = [4,5,9,6,2,5]
#push 0 to position 1
array = [4,0,5,9,6,2,5]
#push 123 to position 1
array = [4,123,0,5,9,6,2,5]
写这个的最好方法是什么?(可以接受javascript或coffeescript)
What is the best way to write this? (javascript or coffeescript acceptable)
谢谢！
推荐答案
array = [4,5,9,6,2,5]
#push 0 to position 1
array.splice(1,0,0)
array = [4,0,5,9,6,2,5]
#push 123 to position 1
array.splice(1,0,123)
array = [4,123,0,5,9,6,2,5]
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