Talk about add commit prompt to typescript and json

when i write typescript or javascript i want to add commit to that function for example 

//<summery>compute two numbers</summery>
//<param name="a">number a</param>
//<param name="b">number b</param>
plus(var a,var b){
    return a+b;
}

so that,when I import this function.the editor can pop the commit information.

json commit.

var jsondata={
   //number 1
   a:"1",
   //number 2
   b:"2"
}

so that,when i use jsondata.a the editor pop commit "number 1".

At most time,the commit is more important than the code.I hope microsoft consider about it.