JavaScript的推数组值到另一个数组 [英] Javascript push array values into another array
问题描述
我有一个JavaScript数组 dataArray中
我要推到一个新的数组 newArray
。但我不想 newArray [0]
是 dataArray中
。我想在所有的价值推到新的数组:
I have a javascript array dataArray
which I want to push into a new array newArray
. Except I don't want newArray[0]
to be dataArray
. I want to push in all the values into the new array:
var newArray = [];
newArray.pushValues(dataArray1);
newArray.pushValues(dataArray2);
// ...
甚至更好:
var newArray = new Array (
dataArray1.values(),
dataArray2.values(),
// ... where values() (or something equivalent) would push the individual values into the array, rather than the array itself
);
所以,现在的新数组包含的各个数据数组的所有的值。有没有像一些速记 pushValues
可用,因此我没有遍历每个dataArray中,通过加1的值1?
So now the new array contains all the values of the individual data arrays. Is there some shorthand like pushValues
available so I don't have to iterate over each individual dataArray, adding the values 1 by 1?
推荐答案
var arrayA = [1, 2];
var arrayB = [3, 4];
var newArray = arrayA.concat(arrayB);
newArray
的值将是 [1,2,3,4]
( arrayA
和 arrayB
保持不变; CONCAT
创建并返回一个新的数组结果)。
The value of newArray
will be [1, 2, 3, 4]
(arrayA
and arrayB
remain unchanged; concat
creates and returns a new array for the result).
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