2021.1

The selector of the following sample script is tbody. Before this script runs, the table body
consists of a single placeholder row with three cells. After running the script, it contains thirty
rows. To improve performance, most of the DOM manipulation takes place on detached
elements.
// Detach the placeholder row from the DOM
var row = query("tr", results).remove();
// Modify the cells of this row
var cells = row.children();
cells[0].html("some text").css("background-color", "yellow");
cells[1].html("some text").css("font-weight", "bold");
cells[2].html("some text");
// Create a number of copies
var rows = row.clone();
for (var i = 0; i < 30; i++) {
rows = rows.add(row.clone());
}
// Attach all copies to the DOM as children of tbody
results.append(rows);
removeAttr()
Removes the specified HTML attribute from an element or from each element in a set of
elements. To add or change an attribute, use attr() (see "attr()" on page1356).
removeAttr(attributeName)
attributeName
String; the name of the attribute.
Examples
This script looks up an email field in a form (which is an <input> with the ID #email1) and
removes its readonly attribute.
query("#email1").removeAttr('readonly');
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