How can I import a variable of my file called routen.js to my file called main.js. I tried it with this command: import {a} from '../../routen/routen.js' But then I got an Error "SyntaxError: Unexpected token '{'. import call expects exactly one argument."
How can I fix it?
I don't use an export but the variable is set here:
let a = false;
exports.login = function(request, response){
var login = request.body.loginname;
var pwd = request.body.loginpassword;
let sql = 'SELECT * FROM Benutzer WHERE Benutzername =? AND Passwort =?';
db.get(sql, login, pwd, (err, row)=>{
if(row) {
console.log("Anmeldung erfolgreich.");
a = true;
}
else{
console.log("Anmeldung fehlgeschlagen.");
a = false;
}
});
response.redirect("/");
response.end();
};
In general:
File: routen.js
let a = false;
exports.a = a;
File: main.js
var a = require("./routen");
console.log(a);
node main.js
shows
$ node main.js
{ a: false }
for your case:
// file: ./routen.js
exports.login = function (request, response) {
var login = request.body.loginname;
var pwd = request.body.loginpassword;
let sql = "SELECT * FROM Benutzer WHERE Benutzername =? AND Passwort =?";
db.get(sql, login, pwd, (_err, row) => {
if (row) {
console.log("Anmeldung erfolgreich.");
return true;
} else {
console.log("Anmeldung fehlgeschlagen.");
return false;
}
});
response.redirect("/");
response.end();
};
// file: main.js
var a = require("./routen");
console.log(a.login(req, res)); // should then print false/true
I would change exports.login
to at the end of that file module.exports = login
in the case login is the function name you are exporting.
to import use the old var login = require('./routen');
I am not sure if in version 10 you can destructure on import so better go to the secure.
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