How can I get and change the contents of a nested element obtained through a variable?

Question

Example:

var sell = document.getElementById("test").cells[0]; // здесь нужно получить и изменить содержимое тега b

 <table> <tr id="test"><td><b>text</b><div></div></td></tr> </table>

How can I get and change the contents of the nested b element obtained through a variable?

Artem Gorlachev Artem Gorlachev 4.185 3 sixteen · Accepted Answer · 2016-09-19T08:29:42

 sell.querySelector('b').innerHTML;

He and setter and getter

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