ihzi is correct. to clarify, the compiler should initialize integers to
zero when they are defined. and it should probably wrap any code that
assigns a value to an int with parseInt().

On Jul 1, 2016 3:38 PM, "jude" <flexcapaci...@gmail.com> wrote:
>
> in as3
>
> var i:int; // i equals 0
>
> in JavaScript i is undefined because we don't know what type it is
>
> var i; // null, undefined or NaN
>
> therefore we need to initialize every integer as zero when it's defined.
>
> On Jun 30, 2016 10:35 PM, "lizhi" <s...@qq.com> wrote:
>>
>> and i++ in as i=1
>> but js i= NaN
>>
>>
>>
>> --
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