(Node.js) StringBuilder to Bytes (in BinData)

Demonstrates converting a string to bytes of a particular character encoding.

Note: This example requires Chilkat v9.5.0.64 or later.

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOSX, and ARM

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node21-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node21-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node21-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node21-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node21-linux64');
    }
} else if (os.platform() == 'darwin') {
    if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node21-mac-m1');
    } else {
        var chilkat = require('@chilkat/ck-node21-macosx');
    }
}

function chilkatExample() {

    // This initial step gets string data to be used in this example from a live URL.
    // It assumes Chilkat HTTP API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    var http = new chilkat.Http();
    http.VerboseLogging = true;
    var sbJson = new chilkat.StringBuilder();
    var success = http.QuickGetSb("https://www.chilkatsoft.com/exampleData/greekAlphabet.json",sbJson);
    if (!success) {
        console.log(http.LastErrorText);
        return;
    }

    var sbGreek = new chilkat.StringBuilder();
    var json = new chilkat.JsonObject();
    json.LoadSb(sbJson);

    // The JSON contains this:

    // 	{ 
    // 	  "greekAlphabet": "                                                "
    // 	} 

    var greekAlphabet = json.StringOf("greekAlphabet");
    sbGreek.Append(greekAlphabet);

    // Append the Windows-1253 represention of the string..
    // In this encoding, each Greek char is one byte per char.
    var binWindows1253 = new chilkat.BinData();
    binWindows1253.AppendSb(sbGreek,"windows-1253");
    // Save to a Windows-1253 text file:
    binWindows1253.WriteFile("qa_output/greek_win1253.txt");

    // Show the bytes in the quoted-printable format so we can easily see the Windows-1253 byte values.
    console.log(binWindows1253.GetEncoded("qp"));
    console.log("--------------------------------");

    // The result is shown here:
    // 	=C1 =E1 =C2 =E2 =C3 =E3 =C4 =E4 =C5 =E5 =C6 =E6 =C7 =E7 =C8 =E8 =C9 =E9 =CA=
    // 	 =EA =CB =EB =CC =EC =CD =ED =CE =EE =CF =EF =D0 =F0 =D1 =F1 =D3 =F3 =F2 =
    // 	=D4 =F4 =D5 =F5 =D6 =F6 =D7 =F7 =D8 =F8 =D9 =F9

    // Append the utf-8 represention of the string..
    var binUtf8 = new chilkat.BinData();
    binUtf8.AppendBom("utf-8");
    binUtf8.AppendSb(sbGreek,"utf-8");
    // Save to a utf-8 text file:
    binUtf8.WriteFile("qa_output/greek_utf8.txt");
    // Show the bytes in the quoted-printable format so we can easily see the utf-8 char representations.
    console.log(binUtf8.GetEncoded("qp"));

    console.log("--------------------------------");

    // These are the utf-8 bytes shown in quoted-printable encoding:
    // 	=EF=BB=BF=CE=91 =CE=B1 =CE=92 =CE=B2 =CE=93 =CE=B3 =CE=94 =CE=B4 =CE=95 =CE=
    // 	=B5 =CE=96 =CE=B6 =CE=97 =CE=B7 =CE=98 =CE=B8 =CE=99 =CE=B9 =CE=9A =CE=BA =
    // 	=CE=9B =CE=BB =CE=9C =CE=BC =CE=9D =CE=BD =CE=9E =CE=BE =CE=9F =CE=BF =CE=
    // 	=A0 =CF=80 =CE=A1 =CF=81 =CE=A3 =CF=83 =CF=82 =CE=A4 =CF=84 =CE=A5 =CF=85 =
    // 	=CE=A6 =CF=86 =CE=A7 =CF=87 =CE=A8 =CF=88 =CE=A9 =CF=89

    // Append the utf-16 (little endian) represention of the string..
    var binUtf16 = new chilkat.BinData();
    binUtf16.AppendBom("utf-16");
    binUtf16.AppendSb(sbGreek,"utf-16");
    // Save to a utf-16 text file:
    binUtf16.WriteFile("qa_output/greek_utf16.txt");
    console.log(binUtf16.GetEncoded("qp"));

    // These are the utf-16 bytes shown in quoted-printable encoding:
    // 	=FF=FE=91=03 =00=B1=03 =00=92=03 =00=B2=03 =00=93=03 =00=B3=03 =00=94=03 =
    // 	=00=B4=03 =00=95=03 =00=B5=03 =00=96=03 =00=B6=03 =00=97=03 =00=B7=03 =00=
    // 	=98=03 =00=B8=03 =00=99=03 =00=B9=03 =00=9A=03 =00=BA=03 =00=9B=03 =00=BB=
    // 	=03 =00=9C=03 =00=BC=03 =00=9D=03 =00=BD=03 =00=9E=03 =00=BE=03 =00=9F=03 =
    // 	=00=BF=03 =00=A0=03 =00=C0=03 =00=A1=03 =00=C1=03 =00=A3=03 =00=C3=03 =00=
    // 	=C2=03 =00=A4=03 =00=C4=03 =00=A5=03 =00=C5=03 =00=A6=03 =00=C6=03 =00=A7=
    // 	=03 =00=C7=03 =00=A8=03 =00=C8=03 =00=A9=03 =00=C9=03

}

chilkatExample();