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From: Thomas 'PointedEars' Lahn <PointedEars@web.de>
Newsgroups: comp.lang.javascript
Subject: Re: Decimal numeric string to hexadecimal numeric string?
Date: Thu, 01 Jul 2021 00:51:08 +0200
Organization: PointedEars Software (PES)
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Message-ID: <20837730.9tcgPO3Tcr@PointedEars.de>
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Ben Bacarisse wrote:

> Jonas Thörnvall <jonas.thornvall@gmail.com> writes:
>> fredag 18 juni 2021 kl. 14:59:24 UTC+2 skrev sc...@sauyet.com:
>>> Jonas Thornvall wrote:
>>> > prgNbr="11"
>>> > 
>>> > parseInt(prgNbr);
>>> > prgNbr.toInteger(16);

Neither of these statements do anything useful as the argument is a 
primitive value that cannot be modified.

>>> What are you trying to do?
>>
>> A numeric "decimal" string to hexdecimal string.
>> So Michales suggestion did not work out, it gives a hexadecimal number
>> not string.
> 
>   parseInt(prgNbr).toString(16)
> 
> Technically, parseInt(prgNbr, 16) doesn't give a hexadecimal number
> (there is not such thing). It gives a number by interpreting the string
> as hexadecimal digits.

Instead:

  let hex = parseInt(prgNbr, 10).toString(16);

parseInt() should not be called without a radix value because then the 
interpretation of the string depends on its prefix.  This is a FAQ.

-- 
PointedEars
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