Need help adding code into JS using another JS

Question

I have a script tag in a web-page which contains a function updatevalues(value) . I need to add code into that function using another javascript tag.

I am able to similarly write into other html elements by using getemementbyid.innerHTML...

How can i add code inside a JS function using another JS tag?

My current code is:

<script>
 function updatevalues(value){
       var a=1;
   }
</script>

I want to make it like this:

<script>
 function updatevalues(value){
       var a=1;
       var b=2;
   }
</script>

Answer 1

You don't need to edit the previous <script> . Literally just write this in a new <script> :

function updatevalues(value) {
  var a=1;
  var b=2;
}

And it will override the definition of the same function in the previous script.