题目描述
var big_ary = [1,2,3,4,5,6,7,9,10];
var small_ary = [11,12,13,14,15];
期望获取的结果
[1, 11,12,13,14,15, 7,9,10]
自己的思路
big_ary.splice(1, 5, small_ary);
结果却是
[1, [11,12,13,14,15], 7,9,10]
var big_ary = [1,2,3,4,5,6,7,9,10];
var small_ary = [11,12,13,14,15];
[1, 11,12,13,14,15, 7,9,10]
big_ary.splice(1, 5, small_ary);
结果却是
[1, [11,12,13,14,15], 7,9,10]
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