I need to import a bunch of jquery files to the index.html

[KanoDekouBillyBrown]

I'm currently trying to convert an Html template of an ecommerce website into a ReactJs web app ,it comes with a lost of jquery and i've tried adding the import statements to the index.html but it doesn't render as expected .

It is possible or should i have to write back all of the Js myself considering the're alot of jquery files ,

how can i do that ?
Thank you in advance