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Tag: javascript

JavaScript

Adding Promise Support to a Node.js Library

I know that when I am working in JavaScript, I prefer to keep everything to using promises or async/await instead of occasionally using callbacks because a library doesn't support them.

May 2, 2022
JavaScript

How to read an Excel file in NodeJs

My favourite library for reading, writing, and manipulating Excel files in Node.JS is ExcelJS. In this tutorial, we'll look at how to install the library and how to dynamically read an Excel file.

February 8, 2022
JavaScript

Outputting a CSV File from Node.js

After reading this article, you will understand how to export data from a database or other system using a csv library in Node.js. CSV stands for common separated values file which means that data can be stored in a tabular format with commas separating each value.

June 22, 2021
What is Test Driven Development?
JavaScript

What is Test Driven Development?

TDD is a lot more than vanity metrics like the percentage of code covered by tests. Test Driven Development (TDD) is a development process that consists of the tests being designed and written before most of the code is written.

May 19, 2020
JavaScript

Functional Programming with JavaScript

JavaScript is really suitable for function programming because of functions being first class. Functions being first class means that JavaScript treats them as a type of object.

April 28, 2020
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Cloud Computing

Running Serverless Framework Functions Locally

Developing locally makes a lot more sense than deploying to a dev environment consistently because it helps save time, save some cloud costs, and avoids obvious embarrassment. :)

April 21, 2020
JavaScript

Is jQuery Dead?

I don't think jQuery is dead at this point, but it's growth seems to be slowing.

February 25, 2020
JavaScript

How to Delete node_modules on Windows

Deleting node_modules on Windows 7 and Windows 10 can be a frustrating experience if you try to do it from Windows Explorer or Command-Line because the file path names tend to get really long.

December 24, 2019
JavaScript

NodeJs: ReferenceError: fetch is not defined

As you may have noticed, fetch doesn't work in Node.js. The fetch API isn't implemented in Node, so you need to use a package that implements it and then use that.

February 12, 2019
JavaScript

10 JavaScript Array Methods Every Programmer Should Know

Arrays are usually used to store a list of elements that need to be accessed by a single variable. I believe that to use JavaScript effectively every developer should be able to use any one of these methods on an array. These methods can save a lot of lines of codes and also allow us to do some pretty awesome function programming!

January 22, 2019
JavaScript

Automatically Compressing Images With NodeJs

Over the years, I've worked on a number of projects where we deal with user or company provided images which are often very large resolutions which take a long time to download on mobile phones or or poor internet connections. This is a simple script that can be used to compress images and avoid potential costs of a service like Kraken.io

January 8, 2019
JavaScript

How to Remove Duplicates From An Array in JavaScript

As a JavaScript developer, there's occasionally a need to remove duplicates from an array of values. By using our knowledge of advanced data sets we can write a lot less code and take advantage of built in features in JavaScript.

June 5, 2018
JavaScript

Introduction to the Knex.js Database Module

Knex is a JavaScript / Node.js library that is designed to make working with relational databases easier. Knex.js is a SQL query builder. It has the potential to make tdd and database versioning much easier.

May 29, 2018
Book Review

Book Review: JavaScript: The Good Parts

Although, JavaScript: The Good Parts is nearly ten years old I would argue it’s still a pretty good book to read. Literally,…

March 19, 2018
What is ORM
Programming

What is ORM?

Most software projects need to talk to a database at some point – they usually do GET queries for data, update a…

March 7, 2018
JavaScript

What does “use strict” do in JavaScript?

Strict mode became available in ECMAScript 5 to allow us to prevent certain actions from being taken and to allow it to throw better exceptions. Strict mode allows us to write better quality JavaScript.

December 5, 2017
JavaScript

Implementing a Palindrome Checker in JavaScript

A palindrome is a word or sentence that's spelled the same way both forward and backwards. Most of the time when doing these challenges during programming interviews you're told to ignore punctuation, case and spacing.

October 24, 2017