Question

I have a function onChangeBrand() in A.js and there is a same name in B.js.

So how to avoid this situation? There is a constraint – I can’t change the function names.
and i am not allowed to edit both the Js files so namespace is not a right idea for me.

Can we call something like A.onChangeBrand() or B.onChangeBrand()?

Answer 1

Ok, if namespaces are not for you and you can put your code in between the script tags loading these files

<script src='a.js'></script>
<script>
var a_onChangeBrand = onChangeBrand; // copy the function
</script>
<script src='b.js'></script>

after that a_onChangeBrand() will call the function from a.js and onChangeBrand() from b.js

But nothing will help you if some functions in those a.js and b.js are also using these functions – they might call function from the last file loaded.