Typewriter Effect Implementations (with JQuery)

type-one.js

//this solution is much better
function typewriter(text, name){
  var input = form.find('input[name="'+ name + '"]').val('')[0],
      s = text.split('').reverse(),
      len = s.length-1,

  var	initInterval = setInterval(function(){
    if( s.length ){
      var c = s.pop();
      input.value += c;
    }
    else clearInterval(initInterval);
  },150);
}

type-two.js

//hmm has bugs if change tab while writing into div
function typewriter(text, name) {
  var input = form.find('input[name="'+ name + '"]');
  
  $.each(text.split(''), function(i, letter){

    setTimeout(function(){
      input.val(input.val() + letter);
    }, 70*i);
    
  })
}