Question

I’m working on a web project which has lots of tables. Do I need to write a separate function for each of the cells in the table for validation? Can I some how reduce the code?

Answer 1

No you can’t use the same id for two elements. What you can do is just pass the id of the element as argument in the function you want to call to call on that element and save it as variable in your function.

See this code which I have written for you

<button id="1" onClick="reply_click(this.id)">B1</button>
<button id="2" onClick="`enter code here`reply_click(this.id)">B2</button>
<button id="3" onClick="reply_click(this.id)">B3</button>

<script type="text/javascript">
function reply_click(clicked_id)
{
    alert(clicked_id);
}
</script>

By this.id you can send the id to the function. So no need of same ID.