How to include a .js file in another .js file when working with QML and QtQuick2?

[TheIndependentAquarius]

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Writing this syntax:

var head= document.getElementsByTagName('head')[0];
   var script= document.createElement('script');
   script.type= 'text/javascript';
   script.src= 'helper.js';
   head.appendChild(script);

var head= document.getElementsByTagName('head')[0];
   var script= document.createElement('script');
   script.type= 'text/javascript';
   script.src= 'helper.js';
   head.appendChild(script);

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gives me:

ReferenceError: document is not defined

ReferenceError: document is not defined

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What's the way out?

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Added after 27 minutes:

Found the solution here: http://qt-project.org/doc/qt-5/qtqml...t-imports.html
Thanks to koopajah from stackoverflow.