1.Placed a js file in assets folder. 2.Added the path in pub spec.yaml 3.How do I invoke a function from a js file from flutter ?

I have tried the following approaches 1.String jsCode = await rootBundle.loadString('assets/temp.js'); but I am unable to invoke function of js file as it is a string. 2. imported flutter_js package but builds fails with compilation errors.

Path of js file is: assets/temp.js

Content of temp.js

function add(){
print("add");
}

snippet of pubspec.yaml flutter: assets: - assets/

Please help me out here, thank you.