Re: Decimal numeric string to hexadecimal numeric string?

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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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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
FAQ: <http://PointedEars.de/faq> | <http://PointedEars.de/es-matrix>
<https://github.com/PointedEars> | <http://PointedEars.de/wsvn/>
Twitter: @PointedEars2 | Please do not cc me./Bitte keine Kopien per E-Mail.

Thread

Decimal numeric string to hexadecimal numeric string? Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-06-17 14:28 -0700
  Re: Decimal numeric string to hexadecimal numeric string? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2021-06-17 21:38 -0700
    Re: Decimal numeric string to hexadecimal numeric string? Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-06-19 00:39 -0700
  Re: Decimal numeric string to hexadecimal numeric string? Scott Sauyet <scott@sauyet.com> - 2021-06-18 05:59 -0700
    Re: Decimal numeric string to hexadecimal numeric string? Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-06-19 00:45 -0700
      Re: Decimal numeric string to hexadecimal numeric string? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-06-19 11:42 +0100
        Re: Decimal numeric string to hexadecimal numeric string? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2021-07-01 00:51 +0200
          Re: Decimal numeric string to hexadecimal numeric string? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2021-06-30 17:39 -0700
            Re: Decimal numeric string to hexadecimal numeric string? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-07-01 01:50 +0100
              Re: Decimal numeric string to hexadecimal numeric string? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2021-07-01 12:46 +0200
            Re: Decimal numeric string to hexadecimal numeric string? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2021-07-01 12:43 +0200

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