TypeError: arrayOfObjects is not iterable

[oslon]

TypeError: arrayOfObjects is not iterable
    at Object.<anonymous> (C:\Users\User\Desktop\100DAYOFCODE\1\1\script.js:3:19)
    at Module._compile (node:internal/modules/cjs/loader:1256:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1310:10)
    at Module.load (node:internal/modules/cjs/loader:1119:32)
    at Module._load (node:internal/modules/cjs/loader:960:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
    at node:internal/main/run_main_module:23:47

The code in question:

const arrayOfObjects = require("./data");
for (const obj of arrayOfObjects) {
  console.log(`ID: ${obj.id}, Name: ${obj.name}`);
}

data is a file containing stuffs in this order

 

const arrayOfObjects = [
{ "id": 1, "name": "bla bla" },
{ "id": 2, "name": "bla bla bla" } 
];

Any ideas to resolve this issue?

[Strider64]

// Import the arrayOfObjects from the data module.
const arrayOfObjects = require("./data");

// Iterate through each object in the arrayOfObjects.
for (const obj of arrayOfObjects) {
  // Log the id and name properties of the current object to the console.
  console.log(`ID: ${obj.id}, Name: ${obj.name}`);
}

For the data module that contains the array of objects:

// Define an array of objects with properties id and name.
const arrayOfObjects = [
  { "id": 1, "name": "bla bla" },       // Object with id 1 and name 'bla bla'
  { "id": 2, "name": "bla bla bla" }   // Object with id 2 and name 'bla bla bla'
];

// Export the arrayOfObjects so it can be imported and used in other modules.
module.exports = arrayOfObjects;

 

[requinix]

Because require() isn't like PHP where you "require" a file and then you get the variables in it. In Javascript, each file is like an independent module, so if you want to share - or export - data from a file then you need to use module.exports as Strider64 showed. What require() will then do, internally, is run the file and then return to you what was exported.

If you wanted to export just the one value then you can set module.exports like that. If you had multiple values then you can treat module.exports as an object (which is what it is by default) and set properties on it; this pairs well with destructuring.

const arrayOfObjects = [ ... ];

const anotherArrayOfObjects = [ ... ];

module.exports = { arrayOfObjects, anotherArrayOfObjects };

const { arrayOfObjects } = require("./data");