HTMLButtonElement: formTarget property
The formTarget property of the HTMLButtonElement interface is the tab, window, or iframe where the response of the submitted <form> is to be displayed. It reflects the value of the <button> element's formtarget attribute.
The value overrides the target property of the HTMLFormElement interface if the form is submitted via the button. This property can be retrieved or set. If not set, the value is the empty string ("").
Value
A string.
Examples
js
btnEl.formTarget = "_self";