ArataKagan

var longestCommonPrefix = function(strs) {
   var common = "";
   var index = 0;

   if(strs.length == 0 || strs == "null"){
	   return common;
   }

   // split the first string of strs
   var string = strs[0].split("");

ArataKagan

const commands = require('./commands.js');

//prompt the user for input
process.stdout.write('prompt > ');

// the stdin 'data' event triggers after a user types in a line
process.stdin.on('data', (userInput) => {
    userInput = userInput.toString().trim();
    commands.evaluateCmd(userInput);
}); 

ArataKagan

//import fs library
const fs = require('fs');

//write out data
function done(output) {
    process.stdout.write(output);
    process.stdout.write('\nprompt > ');
}

// where we will store our commands

ArataKagan

library=# SELECT * FROM books;
  id  |                  title                   |       author        
------+------------------------------------------+---------------------
 1259 | Eloquent Ruby                            | Russell A. Olson
 1593 | JavaScript: The Good Parts               | Douglas Crockford
 8982 | Designing Object-Oriented Software       | Rebecca Wirfs-Brock
 7265 | Practical Object-Oriented Design in Ruby | Sandi Metz