Why won't a function inside a function give any output-CodePudding

So here's my code:

const request = require('request');
url = 'https://en.wikipedia.org/api/rest_v1/page/random/summary';
title = null;
module.exports.title = title;

function myFunc() {
request(url, (error, response, body)=>{
            console.log(body);
            dataObj = JSON.parse(body);
            console.log(dataObj);
            console.log(dataObj.title);
            console.log(dataObj.extract);
            title = dataObj.title;
});
}

When I run the code the console gives me no output. I'm simply curious why putting my request function inside another function results in zero output.

CodePudding user response：

function myFunc() {
request(url, (error, response, body)=>{
            console.log(body);
            dataObj = JSON.parse(body);
            console.log(dataObj);
            console.log(dataObj.title);
            console.log(dataObj.extract);
            title = dataObj.title;
});
}

Add this bellow your code, let's see how it's work, hope you can learn something here about console.log it's very important.

console.log(myFunc)
console.log(myFunc())

CodePudding user response：

return the function request(...) and call the function myFunc(), otherwise, you would never get an output.