How to get data from a table by id?

Question

JavaScript

There is a table by clicking on tr, you need to get data from a specific td (each has its own id).
The data for the table I receive from a DB.
By clicking on tr : I don't get the desired result (
$(this).find('#user_id‘)

Answer 1

Here is an example: jsfiddle.net/pcod2wd7
but why assign an ID (identifier) ​​to each block if you can read it and take its value.