I am creating a program in nodejs. I have a file1.js and file2.js file1.js has a variable which is exported and to get assign value from file2.js so this value can be used here in file1.js.
file1.js
// user given value
let value;
// exporting
module.exports = value
value I want to use here in file1.js once access and assigned from file2.js
file2.js
const value = require("./file1");
// Give a value
value = 5
but its not working what should I do I tried to search example but not able to understand also I don't want to create this variable in file2.js because I don't want to export from file2.js.
help will be much appreciated. Thanks
file2.js
let value;
const setValue = (v) => {
value = v;
};
const getValue = () => {
return value;
};
module.exports = { setValue, getValue };
file1.js
const { setValue, getValue } = require("./file1");
setValue(5);
console.log(getValue());
It won't work because you are using const, however, you should use let here.
let value = require("./file1");
// Give a value
value = 5;
console.log(value); // 5
Node imports are always Singleton and have the caching mechanism. So, this value will be shared in all the imports.