JS Tests

ClosureForLoop.js

var createButtons = function() {
  for(var i = 0; i < 10; i++) {
    var btn = document.createElement('button');
    var t = document.createTextNode('test ' + i);
    
    btn.appendChild(t);
    (function(i) {
      btn.addEventListener('click', function() {
        alert(i);  
      });
    })(i)
    
    document.getElementsByTagName('body')[0].appendChild(btn);
  }
}

createButtons();