AS3: short and simple Vector<String> to Array convertation

Question

I need to convert Vector<String> to Array.

I know the this can be done via any cycle. but in my case it's Vector.<String>, there is may be no need to run cycles

At this pont, I guess this is very shor and simple way to do this:

var vector:Vector.<String> = new <String>["111", "111", "111", "111"];
var array:Array = vector.join(",").split(",");

Ofcource, you need to be shure, thet separator will never be the part of any String on Vector. This can force you to set multi-characters separator, like ',,,'. does this effects on speed? Is it ok? Is it fast anough?

Only you can answer if it is fast enough for your purposes. Also, here's a related question that seems to answer your question as well. personally, i would go with a for loop that just puts the elements in the array (not through push() though, apparently that's slower) — user2655904
– user2655904, Commented Apr 21, 2015 at 5:26
thnx for response. I know the this can be done view any cycle. but in my case it's Vector.<String>, there is may be no need to run cycles — SentineL
– SentineL, Commented Apr 21, 2015 at 5:31

Crabar · Accepted Answer · 2015-04-21 12:56:12Z

1

I have tested your function (I called it "short") and the "classic" way with a cycle. Results:

[trace] 10000 elem : classic : 2
[trace] 10000 elem : short : 26
[trace] 100000 elem : classic : 17
[trace] 100000 elem : short : 50
[trace] 1000000 elem : classic : 153
[trace] 1000000 elem : short : 542

So, I can't recommend to use your way on the big data sets, but it will be OK on the small sets of data.

answered Apr 21, 2015 at 12:56

Crabar

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2 Comments

SentineL Over a year ago

I guess, the last number in each line is time to execute... In my case array length will be <100. one way or enother, I'll have in mind that. tnx for research

Crabar Over a year ago

Yep, it is a spend time in "ms".

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