how can I use captions for my video in this format? {"Timecode":"[00:00:00.42]","Caption":"Hello World\r\n\r\n"}

var fs = requirejs('fs');

                var Reader = {

                settings:{
                    input:'/Applications/XAMPP/xamppfiles/htdocs/project/app/caption.txt',
                    output:"",
                    data:null
                },
                init:function(){
                        var s=this.settings;
                        s.data =this.getInput(s.input);
                },
                getInput:function(input) {

                    fs.readFile(input, 'utf8', function (err,data) {
                      if (err) {
                         console.log(err);
                      }
                      var caption =  JSON.parse(data);
                        console.log("caption.Caption:" + caption.Caption);
                        console.log("caption.Timecode:" + caption.Timecode);
                        return caption;
                    })
                }                                     
        };

(function() {
    Reader.init();
})();