random_password.js

function random_password(length) {

  var characters = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
  var password = "";

  for (var i = 0; i < length; i++) {
    var random_float = Math.random();
    password += characters.charAt(Math.floor(random_float * characters.length));
  }

  return password;
}

// minified
function random_password(c){for(var a="",b=0;b<c;b++)a+="0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ".charAt(Math.floor(62*Math.random()));return a};