(NODE JS) Getting Error : ReferenceError: fs is not defined

Question

Created a file with the name of index.js and the code is

var x = require("fs");
console.log("Hello");
fs.writeFileSync("text.txt","Hello");

and when I run it I receive an error:

ReferenceError: fs is not defined
at Object.<anonymous> (G:\web\Node Js\index.js:3:1)
at Module._compile (internal/modules/cjs/loader.js:1137:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1157:10)
at Module.load (internal/modules/cjs/loader.js:985:32)
at Function.Module._load (internal/modules/cjs/loader.js:878:14)
at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12)
at internal/main/run_main_module.js:17:47

You've assigned `fs` module to variable `x` do `x.writeFileSync("text.txt","Hello");` — Mohammad Basit, Sep 30 '20 at 13:43

score 2 · Answer 1 · answered Sep 30 '20 at 13:14

2

should be var fs = require('fs');

Writing files in Node.js

answered Sep 30 '20 at 13:14

Rony Nguyen

1,067
8
18

score 0 · Answer 2 · answered Sep 30 '20 at 13:20

The issue is caused by mismatch of variables. You've required the module in variable x and trying to access the module using varibale fs which is undefined.

You must use same variable name.

var fs = require("fs");
console.log("Hello");
fs.writeFileSync("text.txt","Hello");

or

var x = require("fs");
console.log("Hello");
x.writeFileSync("text.txt","Hello");

(NODE JS) Getting Error : ReferenceError: fs is not defined

2 Answers2