如何初始化值数组一个矢量？ [英] How do I initialize a vector with an array of values?

问题描述

我如何初始化向量值的阵列？

我想这和它符合精细，但是还是不行！

  LANGS =新矢量＆lt;串GT;（[EN，FR]）;
 

我还需要加载一个任意阵列插入载体，像这样的：

  langlist =EN，FR];
 LANGS =新矢量＆lt;串GT;（langlist）;
 

有没有办法做到这一点？

---

编辑：如何初始化一个二维向量的值的二维数组

 数= [[10,20,30]，[10,20,30];
 NUMS =矢量＆lt;矢量＆lt;数字与GT;＆GT;（数字）;
 

我试过，但它给我的错误：

  

类型错误：错误＃1034：类型强制转换失败。

解决方案

我不认为你可以传递数组的数组中的向量：

 矢量＆lt;矢量＆lt;数＆GT;＆GT;
 

该类型强制转换不会为复杂类型的工作。如果你已经拥有了二维数组考虑下面的转换code：

的变种号码：数组= [[1，2，3]，[4，5，6]];
VAR numbersTemp：阵列=
numbers.map（
    功能（元素：*，指数：INT，编曲：阵列）：矢量＆lt;数＆GT; {
    返回矢量＆lt;数＆GT;（元）;
}）;
VAR NUMS：。矢量＆lt;矢量＆lt;数＆GT;＆GT; =矢量＆lt;。矢量＆lt;数＆GT;＆GT;（numbersTemp）;
 

当然，这将导致两次创造一切的新副本，因此，最好你是不是转换的大名单。

How do I initialize a vector with an array of values?

I tried this and it complies fine, but does not work!

 langs = new Vector.<String>(["en","fr"]);

I also need to load an arbitrary array into a vector, like this:

 langlist = ["en","fr"];
 langs = new Vector.<String>(langlist);

Is there a way to do this?

---

Edit: How do I initialize a 2D vector with a 2D array of values?

 numbers = [[10,20,30], [10,20,30]];
 nums = Vector.<Vector.<Number>>(numbers);

I tried this but it gives me the error:

TypeError: Error #1034: Type Coercion failed

解决方案

I don't think that you can pass in an array of arrays into the Vector:

Vector.<Vector.<Number>>

The type coercion doesn't work for a complex type. If you already have the 2D Array consider the following conversion code:

var numbers:Array = [[1, 2, 3], [4, 5, 6]];
var numbersTemp:Array =
numbers.map(
    function (element:*, index:int, arr:Array):Vector.<Number> {
    return Vector.<Number>(element);
});
var nums:Vector.<Vector.<Number>> = Vector.<Vector.<Number>>(numbersTemp);

Of course this will cause new copies of everything to be created twice, so ideally you are not converting big lists.

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