Asking for implementation of google translation

Question

i try to implement google translate in my MERN project but it not work, I want to know that in which files i will place code.

<div id="google_translate_element"></div>
<script>function googleTranslateElementInit(){new google.translate.TranslateElement({pageLanguage: 'en'},'google_translate_element');}
</script>
<script src="http://translate.google.com/translate_a/element.js?cb=googleTranslateElementInit"></script>

i try to implement this in my reactJs project but it did not translate it any thing