如何获取nodes [i] .dataset.key的值

Question

I have variable called Votes. And its looped like a list view.I want to update a specific raw item value of this varible.For that I use raw number here hard coded 765, and managed to get in. How can i get the value nodes[i].dataset.key and increment it

eg: My raw id 765 --> $varible value is 30 --> make it 31

    if (nodes[i].dataset.key == 765){
       // i want to go inside using raw ID and update the value display on that raw 
        }

Requirement:

I have varibale numVotes in a loop with values. In raw 765 i want to update that value. I already figured to find the exact raw now how to update the varibale value in that raw?

Update:

<td align="center" colspan="5" class="num_votes" data-key="<?php echo $rawID ?>"><?php echo $votes ?></td>

This is what i'm targeting. this is inside a raw.Now if this is raw 765 i want to update the vale $votes of that particular raw !

Answer 1

Get the text content, parse the value, add 1 with the parsed value and re-assign the value.

nodes[i].textContent = Number(nodes[i].textContent) + 1;