Javascript library for convert .ini file to .json file (client side) [closed]

( () => {
    let ini2Obj = {};
    const keyValuePair = kvStr => {
    	const kvPair = kvStr.split('=').map( val => val.trim() );
        return { key: kvPair[0], value: kvPair[1] };
    };
    const result = document.querySelector("#results");
    document.querySelector( '#inifile' ).textContent
    	.split( /n/ )                                       // split lines
        .map( line => line.replace( /^s+|r/g, "" ) )     // cleanup whitespace
        .forEach( line =>  {                               // convert to object
            line = line.trim();
            if ( line.startsWith('#') || line.startsWith(';') ) { return false; }
            if ( line.length ) {
              if ( /^[/.test(line) ) {
                this.currentKey = line.replace(/[|]/g,'');
                ini2Obj[this.currentKey] = {};
              } else if ( this.currentKey.length ) {
                const kvPair = keyValuePair(line);
                ini2Obj[this.currentKey][kvPair.key] = kvPair.value;
              }
            } 
          }, {currentKey: ''} );
    
    result.textContent += 
    	`**Check: ini2Obj['Slave_Settings:11'].ConfigurationfilePath = ${
          ini2Obj['Slave_Settings:11'].ConfigurationfilePath}`;
    
    result.textContent += 
      `nn**The converted object (JSON-stringified)n${
      JSON.stringify(ini2Obj, null, ' ')}`;
})();

.hidden {display: none}

<div class="hidden" id="inifile">
    # this is a comment line
    [Master_Settings:1]
    Model Name=RC-74DL
    IP Address=192.168.1.39
    Port=50000
    
    [Device_Ports:1]
    
    [Slave_Settings:2]
    ConfigurationfilePath=C:UsersnameDocumentsK-Cssig2DevicesRC-63D.xml
    Button Label1=
    
    ; this is a comment line too
    [Device_Ports:2]
    ADIO Mode 1 = DI
    ADIO Mode 2 = DI
    
    [Slave_Settings:11]
    Model Name = Test 3
    Desription=
    ConfigurationfilePath=DevicesTest 3.xml
    # Note: no labels here
    Button Label1=
    Button Label2=
    
    [Device_Ports:11]
    ADIO Mode 1 = DI
    ADIO Mode 2 = DI
    
    [Serial:1:6]
    Main Display=True
    Default Port Description=MX660
    User Port Description=MX660
  
    # Note: empty lines are ok
    Driver Name=BenQ MX660 A
    Device_On_Command=N/A
    Device_Off_Command=N/A
    IsPowerQuery=False
    IsLampQuery=False
</div>

<pre id="results"></pre>