jquery V-2.1.3 & jquery V-3.5.1 - Usage of DOMParser()

Question

from jquery-2.1.3

tmp = new DOMParser(); xml = tmp.parseFromString( data, "text/xml" );

 

and jquery-3.5.1

xml = ( new window.DOMParser() ).parseFromString( data, "text/xml" );

 

What is the difference?