Below you'll find a list of all posts that have been tagged as “Developer”
When developing software applications, we want to make sure the application does what the software requirements say it’s supposed to do, and testing proves that it does. In this article, I’ll explore how to link requirements to test cases, and I’ll explain what a requirement traceability matrix is and how to build a simple one. What Is a Requirement Traceability …
Being a UI developer, I’ve learned one thing: It doesn’t matter how carefully you write your code. Suppose you’ve double-checked that you defined and called all functions the right way or followed all the best practices. Even then you’ll see that a tiny variable can sneak behind and create an error. Now, suppose you find out that for some unknown …
When I’m writing new software, one of the most important thoughts in my mind is how I’ll test to make sure it works. There are lots of ways to test software, and when you’re at your best, you should be using all of them. Sure, you should make sure that your QA team is able to verify that your code …
Finding slow JavaScript code can be a tricky problem to solve. Small code changes can have a big impact on the performance of your code. Fortunately, many different approaches can help you nail down the exact source of the problem. In this post, you’ll learn about three methods that’ll bring you the results you’re seeking. You can trust manual code …
For any business to succeed, it’s important for it to reach users effectively. Almost every business today is online and therefore reaches users through applications. If you run an online business, or if you are a part of such a business, it’s important for you to know what impact your application has on your users. One of the best ways …
“Object Reference Not Set to an instance of an object.” Cast the first stone those who never struggled with this error message when they were a beginner C#/.NET programmer. This infamous and dreaded error message happens when you get a NullReferenceException. This exception is thrown when you try to access a member—for instance, a method or a property—on a variable …
Welcome to Stackify’s guide to C# exception handling. In this article we cover the following topics: Basics about C# Exceptions, including examples Common .NET Exceptions How to Create Your Own Custom C# Exception Types How to Find Hidden .NET Exceptions C# Exception Logging Best Practices Why is this topic so important? In modern languages like C#, “problems” are typically modeled …
Have you ever looked at your website logs and realized they don’t make sense to you? Maybe your log levels have been abused, and now every log categorizes as “Error.” Or your logs fail to give clear information on what went wrong, or they reveal sensitive information that hackers may harvest. Fixing these problems is possible! Let’s explore how you …
Programming languages have made applications more efficient and easy to use, raising user experience to the next level. Let’s look at the top programming languages defining the future of code. 1. Python Python is widely accepted as the best programming language for beginner developers as it is simple and easy to use and deploy. It is widely used to build scalable …
There are dozens of great languages to learn. Today we’ll be breaking down the differences between two of the best: PHP vs Python. Which one is best for your application? Which is going to give you the best return on your development time? We’ll pit these two head-to-head and find out which is the best choice for you. Ease of …
There are plenty of reasons why Java, being one of the older software programming languages, is still widely used. For one, the immense power one wields when using Java is enough to make it their staple. Couple that with the possibilities that using good Java frameworks bring and you could lessen the turnaround time for big projects. This post will …
Well, my developer friends, 2020 is your year. Businesses in practically every industry have a fever to grow their IT operations and automate just anything possible. I know, I know. The demand for developers is nothing new. But 2020 is different. 2020 is the year where we see some of this decade’s most exciting technologies become commercially viable, and others …
Ruby on Rails Gems is a package manager containing libraries, software packages, and utilities for standard format distribution of Ruby programs and libraries. RoR Gems have functionality with related files to help save time in web development. Debugging Byebug: Byebug is an effective solution for debugging. This gem takes time between tasks and implementing code by changing variables to perform …
RoR (Ruby on Rails) is a server-side web application framework. To make it more secure, use HTTPS instead of HTTP. Step One: Buy an SSL certificate: First step is purchasing an SSL certificate. There are various types of SSL certificates, based on your requirements including: Extended Validation Certificates (EV SSL) Organization Validated Certificates (OV SSL) Domain Validated Certificates (DV SSL) …
It’s Friday afternoon, the majority of the development staff has already packed up and headed home for the weekend, but you remain to see the latest hotfix through to production. To your dismay, immediately after deployment, queues start backing up and you begin to get alerts from your monitoring system. Something has been broken and all evidence points to an …
My computer programming teacher had always told me that 10% of our time is spent developing 90% of our application, and the other 90% of our time finishing the last 10% of our project. Even with a good project plan and a concept that makes logical sense, most of our time will be consumed with fixing errors. Moreover, with JavaScript, …
Real User Monitoring is a type of performance monitoring that captures and analyzes each transaction by users of a website or application. It’s also known as real user measurement, real user metrics, end-user experience monitoring, or simply RUM. It’s used to gauge user experience, including key metrics like load time and transaction paths, and it’s an important component of application …
A growing number of online retailers are now migrating to Magento 2 from the earlier version, Magento 1. This trend of migration is driven both by functional advantages and strategic planning as Magento will stop supporting its 1.x versions after 2020. That’s the reason why so many business owners are upgrading their online stores with the latest technology. Why Your …
Ruby on Rails is a server-side web application framework that is completely designed in Ruby under the MIT license. Rails can be viewed as an MVC (model view controller) framework that has built-in support and provides structure for a database, web services, and web pages. Nearly 1 million live websites use Ruby on Rails now which is why companies like …
Node.js error handling isn’t a walk in the park. When putting our code into production, we want to know that it’s battle-tested and hardened for all the complexities that production will throw at it. In order to handle our errors properly, we need to understand: Error object Try…catch Throw Call stack Effective function naming Asynchronous paradigms like promise Wowza—that’s a …
