Set the id of a dynamically created tr tag

I have a table and rows that are being created dynamically into that table as seen below:

 $("body").on("click","#addRow",function(ev){
    
    var newRow = "<tr class='tabrow editing'>"
        +"<th><div></div><div><input type='text' class='form-control' value=''/></div></th>"
        // +"<td><div>A"+len+"</div><div><input type='text' value='A"+len+"'/></div></td>"
        +"<th><div><button class='editRow ' type='button'>Edit</button></div><div><button class='deleteRow ' type='button'>Delete</button></div><div><button class='saveRow' type='button'>Save</button></div></th>"
        +"</tr>";

    
    $(newRow).appendTo("#data_table tbody");

});

How do I add an id just for the at the beginning?

I have tried

        $(newRow).find('tr').attr('id' , 'row' + someNumber);

Answer

You can add id like this

$("body").on("click","#addRow",function(ev){

var newRow = "<tr class='tabrow editing' id='row"+someNumber+"'>"
    +"<th><div></div><div><input type='text' class='form-control' value=''/></div></th>"
    // +"<td><div>A"+len+"</div><div><input type='text' value='A"+len+"'/></div></td>"
    +"<th><div><button class='editRow ' type='button'>Edit</button></div><div><button class='deleteRow ' type='button'>Delete</button></div><div><button class='saveRow' type='button'>Save</button></div></th>"
    +"</tr>";


$(newRow).appendTo("#data_table tbody");

});

or like this (as in @Lain’s comment)

$("body").on("click","#addRow",function(ev){

var newRow = "<tr class='tabrow editing'>"
    +"<th><div></div><div><input type='text' class='form-control' value=''/></div></th>"
    // +"<td><div>A"+len+"</div><div><input type='text' value='A"+len+"'/></div></td>"
    +"<th><div><button class='editRow ' type='button'>Edit</button></div><div><button class='deleteRow ' type='button'>Delete</button></div><div><button class='saveRow' type='button'>Save</button></div></th>"
    +"</tr>";

$(newRow).attr('id' , 'row' + someNumber);
$(newRow).appendTo("#data_table tbody");

});