将一个阵列推入另一个阵列

Question

我有两个数组如下。

var first = [['2','23','33'],['2','23','33'],['2','23','33']]

var second = ['value1','value2','value3']

现在我想把第二个数组推到第一个这样的位置。

var first = [['value1','value2','value3'],['2','23','33'],['2','23','33'],['2','23','33']]

提前致谢

Answer 1

使用unshift将元素添加到数组的开头

var first = [['2','23','33'],['2','23','33'],['2','23','33']]

var second = ['value1','value2','value3']
first.unshift(second)