Thank you so much. parseInt(string.slice(0,2), 16) worked perfectly! On Thursday, December 4, 2014 9:40:20 AM UTC-6, Aria Stewart wrote: > > > On Dec 3, 2014, at 9:36 PM, P THE AWESOME <p2kwo...@live.com <javascript:>> > 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 >
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