conditional - Modernizr.load Deprecated. Yepnope.js Deprecated. Now what?

Question

Prior to Modernizr v3, I was using yepnope.js

Modernizr.load and yepnope.js have both been deprecated. How do we conditionally call stylesheets or javascript files now?

Example that worked with Modernizr v2.5.3:

Modernizr.load({
  test: Modernizr['object-fit'],
  nope: ['./dist/scripts/object-fit.js'],
  complete: function(){
  if (!Modernizr['object-fit']) {
   jQuery(".poster img").imageScale({
   scale: "best-fill", 
   rescaleOnResize: true
   });
  }
 }
});

Answer 1

There's a new syntax and the feature names are all lowercase. You can combine that with jQuery's getScript method.

Which would look something like this:

if (Modernizr.objectfit){
    jQuery.getScript("./dist/scripts/object-fit.js")
        //it worked! do something!
        .done(function(){
            console.log('js loaded');
        })
        //it didn't work! do something!
        .fail(function(){
            console.log('js not loaded');
        });
} else {
    jQuery(".poster img").imageScale({
        scale: "best-fill", 
        rescaleOnResize: true
    });
}