困惑于在javascript中串联数组导致错误

Question

So I have one array and I want to have array1 += array2 where array1 could either be [] or an array of strings. For example I would like to see var array1 = ["abc", "def"] var array2 = ["ghi", "jkl"] and then array1 += array2 would result in array being equal to ["abc", "def", "ghi", "jkl"] but instead when I do array += array2 I get array1 is equal to ["abc", "def", "ghi, jkl"]. Is there some other way of concatenating the two arrays?

Answer 1

使用concat方法轻松完成：

array1.concat(array2);