javascriptdartdart2js

How to return values from main function in js code created by dart2js


I have dart code that returns a string when it is ran

main(){
print("hello");
 return "hello";
}

Now i need to call this from js so i used dart2js to convert it to js.

How i call it from a node.js application:

var sudokuLib = require('./sudoku-lib');
console.log(require('./sudoku-lib'));

I am aware of the large amount of code created by dart2js and it is not a problem since whenever i run the converted js file or the above js code, hello is being printed in the console. But the problem is that I want the returned value to be stored in a variable in my js code, since i will be using the value in my node application.

Is there any way to do this??


Solution

  • I will assume that your dart code is now js code and runing fine :

    For exemple like this sudoku-lib.js :

    function main() {
        return "Hello"
    }
    
    // add the code below
    module.exports = { main };
    

    in a new js file "file.js" you can simply write :

    const lib = require("./sudoku-lib");
    // store it in result var
    const result = lib.main();
    console.log(`The result is: ${result}`);
    

    Ref node-modules-import-and-use-functions-from-another-file