If you ever find yourself needing to insert multiple items at once in a MongoDB collection from a Node.js application, there’s a simple way to achieve this. Here’s how you can do it: First, make sure you have the MongoDB driver for Node.js installed. You can do this by running the following command: npm install mongodb Once you have the MongoDB driver installed, you can then use the following code to insert multiple items at once:...
Discover the various ways in JavaScript to inspect the content of an object (or any other value). JavaScript offers several methods to inspect the content of a variable. Specifically, let’s explore how to print the content of an object. The Console API console.log console.dir JSON.stringify() toSource() Iterating through properties using a loop How to inspect in Node.js Suppose we have the following object car, but we are uncertain about its content and wish to inspect it:...
Node.js is a powerful platform that allows you to run JavaScript code on the server side. If you’re looking to install Node.js on your system, there are several options available to you. In this blog post, we’ll explore three popular methods: using a package manager, downloading the official installer from the Node.js website, or using nvm (Node Version Manager). Method 1: Using a Package Manager One of the most convenient ways to install Node....
When it comes to logging objects in Node.js, things can be a bit trickier compared to doing so in a browser environment. The console.log() function in Node.js simply outputs the object as a string representation, which may not be ideal, especially for complex objects with nested properties. By default, Node.js will print [Object] as a placeholder when an object goes beyond two levels of nesting. However, there are a couple of ways to overcome this limitation and log the object in a readable format....
Learn how to make an HTTP POST request using Node.js. There are multiple options available, depending on the level of abstraction you prefer. The simplest way to perform an HTTP POST request in Node.js is by using the Axios library. Here’s an example: const axios = require('axios'); axios.post('/todos', { todo: 'Buy the milk', }) .then((res) => { console.log(`statusCode: ${res.statusCode}`); console.log(res); }) .catch((error) => { console.error(error); }); Another option is to use the Request library....
Learn how to easily rename multiple files using Node.js. In this blog post, I will guide you through the process of renaming a set of files using Node.js. This process can also be used to move files to another folder, as renaming a file effectively changes its path. The motivation behind this task was the need to manage blog posts in Hugo. Blog posts can be written as individual files, such as “first-post....
In this blog post, we will explore how to parse JSON data in Node.js. Whether you have JSON data as a string or in a file, we will cover both scenarios. Parsing JSON from a String To parse JSON from a string in Node.js, you can use the JSON.parse method. This method is available in JavaScript since ECMAScript 5 and is provided by V8, the JavaScript engine that powers Node.js....
Learn how to read and utilize environment variables in a Node.js program. Environment variables are incredibly valuable as they allow us to avoid hardcoding sensitive information, such as API keys, directly into our code and inadvertently pushing it to GitHub. Modern deployment platforms, including Vercel and Netlify, offer ways to add environment variables through their interfaces, making it even easier to manage these variables. In Node.js, the process core module provides the env property, which contains all the environment variables set when the process began....
When working with MongoDB, there may be instances where you need to remove all items from a collection. In this article, we will discuss how to achieve this using the deleteMany method. To remove all items from a MongoDB collection, you can simply call the deleteMany method on the collection and pass an empty object as the filter. Here is an example: yourcollection.deleteMany({}) Here’s a complete example that demonstrates how to remove all items from a MongoDB collection using Node....
I regularly use Gitbook, a Node.js software that converts a set of markdown files into an ebook. Recently, while trying to generate a PDF using the command gitbook pdf ., I encountered a strange error: ➜ ebook git:(master) ✗ gitbook pdf . /usr/local/lib/node\_modules/gitbook-cli/node\_modules/npm/node\_modules/graceful-fs/polyfills.js:287 if (cb) cb.apply(this, arguments) ^ TypeError: cb.apply is not a function at /usr/local/lib/node\_modules/gitbook-cli/node\_modules/npm/node\_modules/graceful-fs/polyfills.js:287:18 The error message “cb.apply is not a function” left me wondering about its meaning and why it occurred at that moment....