Node.js :SyntaxError(Cannot use import statement outside a module)

Suppose you have a normal node.js file index.js as follows

index.js

import "core-js";

const inventory = [

{ name: "asparagus", type: "vegetables", quantity: 5 },

{ name: "bananas", type: "fruit", quantity: 0 },

{ name: "goat", type: "meat", quantity: 23 },

{ name: "cherries", type: "fruit", quantity: 5 },

{ name: "fish", type: "meat", quantity: 22 },

];

const result = inventory.group(item=>{

return item.type

})

console.log(result)

const result2 = inventory.groupByToMap(item=>{

return item.type == "meat"?"Non-Veg":"Veg"

})

console.log(result2)

Explanation:

Here we are using import not commonly used in old style coding with common.js.

when you run the file as node index.js most probabally yoy will get error as

follows:

SyntaxError: Cannot use import statement outside a module

Solution:

You can resolve it by adding type as module in packgage.json as follows:

{

"name": "phenix",

"version": "1.0.0",

"description": "",

"main": "index.js",

"scripts": {

"test": "echo \"Error: no test specified\" && exit 1"

},

"keywords": [],

"author": "",

"type": "module",

"license": "ISC",

"dependencies": {

"core-js": "^3.36.1"

}

}