JavaScript Common Questions and Answers

Question 1: What is the difference between null and undefined in JavaScript? Answer: In summary, null is used to explicitly assign an empty value, while undefined is used when a variable has been declared but not assigned a value. Question 2: What is hoisting in JavaScript? Answer: Hoisting is a JavaScript behavior where variable and … Read more

NodeJS node fetch package

Node-fetch is a module that allows you to make HTTP requests from a Node.js environment. It provides a similar interface to the browser’s built-in fetch API but is specifically designed for server-side usage. Here’s an explanation of how node-fetch works: npm install node-fetch const fetch = require(‘node-fetch’); fetch(‘’) .then(response => response.json()) .then(data => { console.log(data); … Read more

NodeJS app.use(express.json())

In a Node.js application, the app.use(express.json()) code is typically used as middleware with the Express framework. Let’s break down its functionality: const express = require(‘express’); const app = express(); app.use(express.json()); When a request is received by your Express application, the express.json() middleware is executed before reaching your routes or handlers. It examines the Content-Type header … Read more

Apps Script Doc Lists

o add numbered list items to a Google Docs document using Apps Script, you can use the setListId() and setNestingLevel() methods of the ParagraphHeading element. Here’s an example that demonstrates how to add numbered list items: function addNumberedListToDoc() { var doc = DocumentApp.getActiveDocument(); var body = doc.getBody(); // Create a numbered list var listItems = … Read more

Apps Script createEventFromDescription

createEventFromDescription Apps Script from a description. Here’s a code snippet that demonstrates how to achieve that: function createEventFromDescription() { var calendarId = ‘YOUR_CALENDAR_ID’; // Replace with your calendar ID var description = ‘Event Description’; // Replace with the description for your event var calendar = CalendarApp.getCalendarById(calendarId); var event = calendar.createEventFromDescription(description); Logger.log(‘Event created: ‘ + event.getTitle()); … Read more

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NodeJS NPM package JSON file

In Node.js, the package.json file is a metadata file that is typically located in the root directory of a Node.js project. It serves as a central configuration file for the project and provides important information about the project, its dependencies, and other details. The package.json file is essential for managing and building Node.js applications. It … Read more

what does UTF mean

In Node.js, “UTF” stands for Unicode Transformation Format. UTF is a character encoding scheme that represents Unicode characters using variable-length encoding. It allows representing a wide range of characters from different writing systems and languages. In the context of Node.js, “UTF” is commonly used in combination with string encoding and decoding operations. Node.js provides several … Read more

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