A little focused java script library meant to make the first steps in dealing with a dynamically typed language easier.

I do not care about the debate whether JS is or is not a language and if it does or does not suck. WE are stuck with it for the time being.

So back to ValyJs . After delving into the the JS belly of the beast more intensively in my recent history I noticed that some patters repeat itself over and over again. I saw code like the following checking if a member or a method exists before calling it.

function myFunction(){
  if(someOtherFunction != undefined)
    return someOtherFunction();
}

or

function myFunction(input){
  if(input.name)
    // do something with name

  if(input.age)
    // do something with age
}

the most common pattern is that of checking for the existence of a element before executing an action.

This is where ValyJs comes in and tries to make your life easier.

function onStart(){
  valy.executeIfExists({
    elementId : "TestP",
    func: function(element){
      element.innerHTML = valy.about.version;
    }
  });
}