tsv to json converter

converter.js

function tsvJSON(tsv){
  var lines=tsv.split("\n");
  var result = [];
  for(var i=0;i<lines.length;i++){
	  var obj = {};
	  var currentline=lines[i].split("\t");
	  if(currentline.length>2){
		  obj.gene = currentline[1].split(",");
		  if(currentline[0].indexOf('(GO:')>0){
			  const startIndex = currentline[0].indexOf('(GO:');
			  const endIndex = currentline[0].indexOf(')');
			  console.log(startIndex,endIndex,currentline[0].substr(startIndex+1,endIndex-startIndex-1));
			  obj.goid = currentline[0].substr(startIndex+1,endIndex-startIndex-1);
			  obj.golabel = currentline[0].substr(0,startIndex-1);
		  }
		  else{
			  obj.golabel = currentline[0];
		  }
		  result.push(obj);
	  }
 
  }
  return JSON.stringify(result); //JSON
}


const fs = require('fs') 
let dataString = '';
fs.readFile('input.tsv', (err, data) => { 
	if (err) throw err; 
	dataString = data.toString();
	const output = tsvJSON(data.toString());
	fs.writeFileSync('./output.json', output, 'utf-8'); 
})