getStaticRecourceContent.js

var path = $A.get("$Resource.sampleScript");
var req = new XMLHttpRequest();
req.open("GET", path);
req.addEventListener("load", $A.getCallback(function() {
    $A.createComponent ('aura:unescapedHTML', {value: req.response}, 
                        function(newComp, status, errorMessage ) {
                            if (status === 'SUCCESS') {
                              component.set ('v.scriptDataComp',newComp );    
                            }
                        });
    //component.set("v.scriptData", req.response);
}));
req.send(null);