Pass variable in document.getElementByid in javascript

Question

I have a variable account_number in which account number is stored. now i want to get the value of the element having id as account_number. How to do it in javascript ?

Answer 1

Why are you prefixing and post-fixing ' characters to the name string? ben_name is already a string because you've appended '_name' to the value.

I'd recommend doing a console.log of ben_name just to be sure you're getting the value you expect.

the way to use a variable for document.getElementById is the same as for any other function:

document.getElementById(ben_name);

I don't know why you think it would act any differently.