kei344 score 64824
2016/05/14 21:35 投稿
| こういうことでは。 |
| ```JavaScript |
| var arr = [{n:1}, 2, 3, 4, 5]; |
| var addArr = [6, 7, 8]; |
| var newArr = arr.concat(addArr); |
| console.log(newArr); // => [1, 2, 3, 4, 5, 6, 7, 8] |
| console.log(addArr); // => [6, 7, 8] |
| arr[0].n=8; |
| console.log(newArr); // => [{n:8}, 2, 3, 4, 5, 6, 7, 8] ??? そんなことはない |
| console.log(newArr); // => [{n:8}, 2, 3, 4, 5, 6, 7, 8] |
| console.log(arr); // => [{n:8}, 2, 3, 4, 5] |
| ``` |
