Mi first tech post is about a recent trick that I wrote in JavaScript to let the user be able to check all the checkbooks in a table, the standard problem that everyone has bumped on in a website that has use interaction with lot of datas. First of all we have to write the structure of our HTML table,
![](https://www.massimilianopetrilli.it/my/wp-content/uploads/2017/05/Table-Structure-800x483.png)