ArrayCollection与FLEX中的矢量对象 [英] ArrayCollection versus Vector Objects in FLEX

问题描述

任何人都可以告诉我一个ArrayCollection和Flex中的矢量之间的适用差异？我不确定是否应该使用另一个。我看到Vector是类型安全的，这让我感觉好多了，但是有缺点吗？

  public var ac：ArrayCollection = new ArrayCollection的（）; 
  

  public var vec：Vector。< String> = new Vector。< String>（）; 
  

谢谢。

解决方案<另外，Vector的速度比Array快3倍，比ArrayCollection快18倍。

经验法则是

• 如果您不需要数据绑定/事件通知，请使用Array
  

$ b $如果数组中的所有元素具有相同的类型（并且您想要强打字），则使用Vector AND

• / li>
  

Can anyone tell me the applicable differences between an ArrayCollection and a Vector in flex? I'm unsure if I should be using one over the other. I saw that Vector is type safe and that makes me feel better, but are there disadvantages?

public var ac:ArrayCollection = new ArrayCollection();

versus

public var vec:Vector.<String> = new Vector.<String>();

Thanks.

解决方案

Additionally, Vector is about 3 times faster than Array, which is about 18 times faster than ArrayCollection.

rule of thumb is

• if you don't need data binding / events notifications, use Array

AND

• if all elements in the array are of the same type (and you want strong typing), use Vector.

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