Two string - JavaScript - Array.ForEach, a function getNumberArray - code sample

Twostring15.js

/// <reference path="typings/node/node.d.ts"/>

'use strict';

var _input =  "";

function getNumberArray(line) {
	var arr = [];

	var addNumber = function (val) {
		arr.push(parseInt(val));
	};

	line.split(' ').forEach(addNumber);
	return arr;
}

function hasSubString(word1, word2) {
	var map = {};
	for (var char= 0; char< word1.length; char++)
		map[word1.charCodeAt(char)]= 1;
		
	for (var char= 0; char< word2.length; char++) {
		
		if (map.hasOwnProperty(word2.charCodeAt(char)))
			return true;
	}
	
	return false;
}

function processData(input) {
 
	var lines = input.split('\n').splice(0);
	var line = 0;
	var tests = getNumberArray(lines[line++])[0];
	
	for (var test = 0; test< tests; test++) {
		
		var word1= lines[line++];
		var word2= lines[line++];
		
		if (hasSubString(word1, word2))
			console.log("YES");
		else
			console.log("NO");		
	}
} 

// get the input data
if (_input.length == 0) {
	process.stdin.resume();
	process.stdin.setEncoding("ascii");
	process.stdin.on("data", function (input) {
	    _input += input;
	});
	
	process.stdin.on("end", function () {
	   processData(_input);
	});
}
else
	processData(_input);