> On Dec 3, 2014, at 9:36 PM, P THE AWESOME <p2kwolfg...@live.com> wrote: > > I am trying to convert a string with the byte number in it into a real byte. > > var string = "23"; // Or it could be 4E, CA, 22, FF, or any other byte > var byte = somehowConvertStringToByte(string); // The variable "byte" Should > look like 0x23 to NodeJS > var otherByte = 0x23; // This is 100% equal to the variable "byte." NodeJS > will see this variable and "byte" the exact same way. > > Hopefully this makes sense. I'm have to generate some stupid checksums to get > my UPB serial PIM to accept commands. I have the reset of the code working. > I'm making a CLI script that generates UPB commands and then sends them with > node-serialport.
Try this: parseInt(string.slice(0,2), 16) string.slice(0, 2) grabs the first two characters: two nybbles, one byte. parseInt(str, 16) parses that into a native Number, assuming base 16 (hexadecimal, like your example) 0x23 is a literal for a Number, so that, too, makes a value that is equal to what that returns. Aria -- Job board: http://jobs.nodejs.org/ New group rules: https://gist.github.com/othiym23/9886289#file-moderation-policy-md Old group rules: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines --- You received this message because you are subscribed to the Google Groups "nodejs" group. To unsubscribe from this group and stop receiving emails from it, send an email to nodejs+unsubscr...@googlegroups.com. To post to this group, send email to nodejs@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/nodejs/8E4B1E42-07D1-4AE9-8468-5C33B7ADC4F0%40nbtsc.org. For more options, visit https://groups.google.com/d/optout.
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