如何创建可在多个项目中使用的javascript库？

Question

So I have a custom-made javascript library that I use in multiple projects. The problem is that if I make a change in one of the projects, then I have to into all the projects that use that library and replicate the changes. I want to be able to make the changes in the original library and all the projects that use/reference it are automatically updated. How do I go about doing this in Visual Studio (2013)?

Answer 1

1. Facade design pattern : (Function's name VS function's implementation )

You need to define contract (Called interface in JAVA) to avoid changing the name of functions .

Briefly, Don't change name of functions, Change implementation's function .

2. Attach your logic to non-changebale nameSpace :

var api={}; /*"api" is namespace*/
api.myFn=function(a,b){
    return a+b;
}

is Better than :

var myFn=function(a,b){
        return a+b;
    }

3. Use Anonymous function :

Best practices are to wrap the code of the WHOLE library with anonymous functions.

 (function(api){
       api.myFn=function(a,b){ /*"myFn" is attached to nameSpace*/
            return a+b;
       };
       window.myLibrary=api; /*Publish your library to be used outside of anonymous function */
 })({}) /*{} is the value of api*/

Then in other files/other projects , you can use it like so : myLibrary.myFn(4,5)

DEMO :

  (function(api){ api.myFn=function(a,b){ /*"myFn" is attached to nameSpace*/ return a+b; }; window.myLibrary=api; /*Publish your library to be used outside of anonymous function */ })({}) /*{} is the value of api*/ console.log( myLibrary.myFn(4,5) )