Assuming you're using jQuery..
var input = '19 51 2.108997\n20 47 2.1089';
var lines = input.split('\n');
var output = '';
$.each(lines, function(key, line) {
var parts = line.split(' ');
output += '' + parts[0] + ' ' + parts[1] + '' + parts[2] + '\n';
});
$(output).appendTo('body');