error while connecting sqlite database file using node js

Question

I am new to Node.Js and have written the below code to connect to the SQLite db file. But unfortunately getting error-ed out. please help

Node - 4.6.0:

const sqlite3 = require('sqlite3').verbose();

let db =new sqlite3.Database('./db/program', sqlite3.OPEN_READWRITE,(err)                             
if (err) { console.error(err.message);  }
console.log('Connected to the database.');});

Error message:

let db = new sqlite3.Database('./db/program', sqlite3.OPEN_READWRITE, (err) => {
^^^

SyntaxError: Block-scoped declarations (let, const, function, class) not yet supported outside strict mode
    at exports.runInThisContext (vm.js:53:16)
    at Module._compile (module.js:373:25)
    at Object.Module._extensions..js (module.js:416:10)
    at Module.load (module.js:343:32)
    at Function.Module._load (module.js:300:12)
    at Function.Module.runMain (module.js:441:10)
    at startup (node.js:139:18)
    at node.js:974:3

Aritra Chakraborty · Accepted Answer · 2018-08-09 12:53:42Z

1

As you're using Node 4.6.0 it doesn't support ES6 syntax out of the box. You need to use the strict mode and write code.let is supported out of the box after Node v6.0.0.

So, maybe you can upgrade Node.JS or you can just add,

"use strict";

in the 1st line of the code. It should work.

Check ES6 compatibility here: https://node.green/#ES2015-bindings-let
Learn more about Strict mode: https://www.w3schools.com/js/js_strict.asp

answered Aug 9, 2018 at 12:53

Aritra Chakraborty

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