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Re: How do I convert the following to Uint8Array.

From Stefan Weiss <krewecherl@gmail.com>
Newsgroups comp.lang.javascript
Subject Re: How do I convert the following to Uint8Array.
Date 2016-01-22 13:25 +0100
Organization albasani.net
Message-ID <n7t74i$obt$1@news.albasani.net> (permalink)
References <ce4bb039-aa19-4cbe-bb9b-8b8f004f8992@googlegroups.com>

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On 01/22/2016 12:52, Robby Balona wrote:
> I have a string "ab05d705" and I am trying to convert it to the
> following so I can add it to a Uint8Array. So how do I convert the
> string "ab05d705" to
> 0xab,0x05,0xd7,0x05 to put into the following 
> var data = new Uint8Array([0xab,0x05,0xd7,0x05]);

As a one-liner:

  str.match(/.{2}/g).map(function (hex) { return parseInt(hex, 16); })

This assumes that the original string is valid as described.
If the performance of this conversion is important, there are other ways
(using one parseInt() and some bit shifting fun).

- stefan

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Thread

How do I convert the following to Uint8Array. Robby Balona <robby@grab.co.za> - 2016-01-22 03:52 -0800
  Re: How do I convert the following to Uint8Array. Stefan Weiss <krewecherl@gmail.com> - 2016-01-22 13:25 +0100
    Re: How do I convert the following to Uint8Array. Stefan Weiss <krewecherl@gmail.com> - 2016-01-22 13:32 +0100
      Re: How do I convert the following to Uint8Array. Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-01-22 12:54 +0000
        Re: How do I convert the following to Uint8Array. Stefan Weiss <krewecherl@gmail.com> - 2016-01-22 14:22 +0100
  Re: How do I convert the following to Uint8Array. Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-01-22 12:41 +0000
  Re: How do I convert the following to Uint8Array. Robby Balona <robby@grab.co.za> - 2016-01-23 00:51 -0800
    Re: How do I convert the following to Uint8Array. Stefan Weiss <krewecherl@gmail.com> - 2016-01-23 12:15 +0100
    Re: How do I convert the following to Uint8Array. Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-01-23 11:17 +0000
  Re: How do I convert the following to Uint8Array. Robby Balona <robby@grab.co.za> - 2016-01-24 09:44 -0800

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