I am trying to create some dummy function in nodejs and trying to export it in another file but when I am running it using node index.js it might some sort of silly mistake but its showing error that:
TypeError: spr.comb is not a function
Below is my code:
spread.js
const comb = () => {
const arr = [4,5,6];
const newArr = [1,2,3,...arr];
console.log(newArr);
}
module.exports = comb;
index.js
const spr = require('./spread');
spr.comb();
Someone let me know what I am doing wrong.
Problem is that you have completely overwritten the module.exports object.
module.exports is an empty object to which you can add the values to export from a module.
In your case, you have re-assigned the module.exports to comb function. So, to call the function, change
spr.comb();
to
spr();
For spr.comb() to work, you need to export the comb function as shown below:
module.exports.comb = comb;
or
exports.comb = { ... }
you can do it like this(in spread.js):
const comb = module.exports.comb = () => {
const arr = [4, 5, 6];
const newArr = [1, 2, 3, ...arr];
console.log(newArr);
}
Can't use a user defined name here because you have exported comb from your spread file
const spr = require('./spread');
spr.comb();
Use this instead
const comb = require('./spread');
If you want to use custom name you need to modify your spread file like this
module.exports = () => {
const arr = [4,5,6];
const newArr = [1,2,3,...arr];
console.log(newArr);
}
Now you are exporting a function from spread, while importing/ including it in index.js you can provide a custom name to this function.
const {custom name comes here}= require('./spread');
For Example
const comb = require('./spread');
const myCombFn = require('./spread');