closestToZero.js

/**
 	Rules

Write a program that prints the temperature closest to 0 among input data. If two numbers are equally close to zero, positive integer has to be considered closest to zero (for instance, if the temperatures are -5 and 5, then display 5).
 	Game Input

Your program must read the data from the standard input and write the result on the standard output.
Input
Line 1: N, the number of temperatures to analyze

Line 2: A string with the N temperatures expressed as integers ranging from -273 to 5526

Output
Display 0 (zero) if no temperatures are provided. Otherwise, display the temperature closest to 0.
 **/

var n = parseInt(readline()); // the number of temperatures to analyse
var temps = readline(); // the n temperatures expressed as integers ranging from -273 to 5526

// Write an action using print()
// To debug: printErr('Debug messages...');

var tempSplit = temps.split(' ');
//console.log(tempSplit);
var closest = 6000;
if(n >= 1 && tempSplit){
    tempSplit.forEach(function (item, index, array) {
        if(Math.abs(item) < Math.abs(closest)){ 
           //console.log(item+ " " + closest);
           closest = item;
       }else if(Math.abs(item) === Math.abs(closest)){
           if(Math.sign(item) === 1){
               closest = item;
            }
       }
      //console.log(item, closest);
    });
}else{
    closest = 0;
}
print(closest);