[danik.js]

function search() {
  
    var infoOne = document.getElementsByClassName('infoOne');
    var infoTwo = document.getElementsByClassName('infoTwo');
    var contents = [];
    for (var i=0; i < infoOne.length; i++) {
        contents[i] = [infoOne[i].innerText || infoOne[i].textContent || '', infoTwo[i].innerText || infoTwo[i].textContent || ''].join(' - ');
    }
 
    var result = contents.join('\n'); // для html - join('<br/>')
     
    alert( result );
 
}