What Is The MEAN Stack and Why Is it Better Than LAMP?

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The MEAN software stack is a popular set of technologies for creating websites. It consists of MongoDB, Express.js, AngularJS, and Node.js. Each of these items provides vital features and time-saving tools for website development. Although another popular set of technologies known as the LAMP stack may be some developers’ preferred stack, this article will outline precisely why you will find more success with MEAN stack development.

MongoDB

The first letter in MEAN stands for MongoDB. You will use this for your website’s databases. You may store anything in the database from basic user credentials to shared information like the comments on a forum. MongoDB uses the file format JSON, which will be familiar and intuitive to you if you have ever used a JavasScript object. With helpful learning resources and solid documentation, MongoDB is an excellent choice for today’s web developers. In contrast, the relational database system in the LAMP stack is considered outdated by some and also much stricter, making MongoDB the ideal choice.

Input Alert in Xcode Using Objective-C

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Introduction

We have seen an input alert in iOS apps that looks like this:

Input Alert In Xcode Using Objective-C

Example input alert

In this article, we will learn how to create an input alert in Objective-C using Xcode. I’ve written this article for beginners. If you know the basics, you can jump to step six. If you know Xcode very well, then add one button, provide touch-up inside, and jump to step fourteen. For beginners, let’s create a new project.

Getting Started With Python

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In this article, we will install Python and create the first “Hello World” application using Python.

What Is Python?

Python is a high-level, general-purpose, interpreted, Cross-Platform, Case Sensitive, and Object-Oriented programming Language. Python was created by Guido van Rossum and first released in 1991. It uses an Object-Oriented approach which makes the programmer write clear, logical code for projects. Python has become one of the most popular programming languages used in the world. It is easy to learn because its syntax is similar to the English language. It uses a new line to complete commands and indentation to indicate a block of code. Python is derived from C, C++, Algol-68, Unix Shell, and other scripting languages, etc. The latest version of the Python is Python 3.

IValue: Efficient Representation of Dynamic Types in C++

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Introduction

In traditional SQL systems, a column’s type is determined when the table is created and never changes while executing a query. If you create a table with an integer-valued column, the values in that column will always be integers (or possibly NULL).

Rockset, however, is dynamically typed, which means that we often don’t know the type of a value until we actually execute the query. This is similar to other dynamically typed programming languages where the same variable may contain values of different types at different points in time:

Create a Transpiler: From VBA to VB.NET

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In this tutorial, we show how to create a transpiler, a software that can be useful in a few scenarios: if you have a large codebase in a language that does not fit your needs anymore or if you still want to keep developing in one language, but you need better performance or need to run in a specific environment. 

The example transpiler will convertVisual Basic for Applications (VBA) to Visual Basic.NET (VB.NET) code. There are companies that need to keep using VBA because it is a simple language used by non-developers inside Excel. However, there could also be a need for increased performance or to mix calculations made by analysts with parts developed by professional developers. In such cases, individuals can transpile from VBA to VB.NET and let everything run in a single environment.

Best Practices for Using Maybes and Creating Default Values

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Introduction

You’ve learned that using Maybes allows you to get rid of null pointer exceptions (i.e. “undefined is not a function”). However, now your application fails and gives no indication as to why. Errors would have left a stack trace that could have provided a hint as to where the problem originated, but, clearly here, you don’t have that to rely on. What should you be doing instead?

Null Pointers in Python vs. Ruby, Lua, and JavaScript

Let’s define what we mean by null pointers and how you usually encounter them. Most null pointers you’ll run into are from either accessing a property of an object to show on the screen or calling a method on an object.

How to Use a Vue Pivot Grid UI Component in Your Web App

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In this post, we will review the PivotGrid component. Unlike a typical grid, a PivotGrid lets you change the way the data is presented. For example, you may have a data set with inventory items that include the number in stock, category, store, and quarter. You can create a PivotGrid to analyze the total inventory in stock by store and by quarter. Or, you can view the inventory in stock by category and by store. These different perspectives can be viewed in the same grid just by selecting which fields to use for the row and column of the grid. In a regular grid, you could only create one static view. 

Getting Started

We will need the PivotGrid, the PivotConfigurator, and the PivotDataSource components. The PivotGrid displays our summarized data. The PivotConfigurator helps us build the PivotGrid. And the PivotDataSource is an extension of the DataSource component used to bind our data to the PivotGrid and PivotConfigurator. First, we will initialize our project using the Vue webpack-simple template. Then, we will install Kendo UI, a theme, the PivotGrid package, and the DataSource package.

Seven Easy Steps to Install MiniProfiler on an ASP.NET MVC Website

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MiniProfiler

Today, I wanted to add MiniProfiler to an ASP.NET MVC web application (not .NET Core), but unfortunately, the NuGet package doesn’t set up things correctly. The documentation is a bit lacking, and their sample project doesn’t work. So what was supposedly a simple task, took almost a full day of research to finally complete.

Pyleri Tutorial: Parsing with Ease

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You can find the source code in the companion
 repository.

Welcome to a tutorial on Pyleri, a.k.a. the Python Left-Right Parser, a simple parsing tool used you need something more robust than a regular expression but less dense than a full-parser generator. In this tutorial, we are going to show you how to use the tool to quickly parse through your text files.

Why Learn Pyleri?

We chose Pyleri because of its ease of use and its overall effectiveness. It makes creating parsers easy. It can also quickly support features like auto-completion. In addition, the same grammar can also generate parsers for multiple languages: JavaScript, C, Python, Go and Java. It is also well-tested given that it was designed to be used with SiriDB, a highly-scalable and fast time-series database.

A Developer’s Perspective: Responding to the Call

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If you feel like existing processes can keep major issues from reaching the user base, you’ll want to read this article — which provides an expose on how a reported issue was not addressed for several months only after the application was deployed.

My friend Greg has been a professor for most of his career. One thing he has conveyed to me is, "to think of an IT organization as a fire department," where you drive by and notice firefighters tending to periodic tasks or simply enjoying a peaceful day. In every case, they are ready to respond to an unexpected emergency. The theory is that everyone is glad that they are there but happier when they are not fighting constant emergencies.

Three Ways to Deploy a WinForms or WPF .NET Core Application

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This post will help you deploy and bring your finished app to your users. .NET Core 3 gives us three ways to deploy an app, and each has its benefits.

I know that the real fun is while an app is being developed, and we as developers are focused mainly on this part of creating an application. However, the real purpose of every app is to get to its end-users. 

Comparing Native Blazor Components to Wrapped JavaScript Components

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Should we rewrite native UI components or reuse existing JavaScript UI components? We compare native Blazor components to wrapped JavaScript components by understanding how Blazor works, including what native vs. interop means and more.

Blazor is a new Single Page Application (SPA) framework that utilizes WebAssembly to run .NET application code in the browser. This future-forward framework allows developers to leverage their existing .NET code and skills to create web applications that can run completely client-side without the need for browser plugins. As with any new web framework, we’re presented with a challenging decision of bringing along assets from previous works into the new system.

Deploy a Clojure Web Application to AWS Using Terraform

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This is the third blog post in a three-part series about building, testing, and deploying a Clojure web application. You can find information on setting up previously mentioned applications like CircleCI in the first post here and the second here.

In this post, we will be focusing on how to use HashiCorp Terraform to stand up a fairly complex infrastructure to host our web application Docker containers with a PostgreSQL container and then use CircleCI to deploy to our infrastructure with zero downtime. If you don’t want to go through the laborious task of creating the web application described in the first two posts from scratch, you can get the source by forking this repository and checking out the "part-2" branch.

How to Use a Vue Stock Chart UI Component in Your Web App

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In the previous article, we learned how to create an area chart with Kendo UI for Vue. In this article, we will create a candlestick chart.

A candlestick chart shows the open, high, low, and close values for a stock. It has a solid portion that is the body and two wicks extending above and below the body. The body shows the range between the open and close price. The top of the upper wick represents the highest trading price. The bottom of the lower wick is the lowest trading price. Candlestick charts are used to analyze patterns in price movements such as if the price is moving in an upward trend or a downward trend. Up next, we will create our chart using stock data we fetch from an API.

How to Avoid a Distorted Android Camera Preview With ZXing.Net.Mobile

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If you need to implement QR-scanning into your Xamarin (Forms) app, chances are high you will be using the ZXing.Net.Mobile library (as it is the most complete solution out there). In one of my recent projects, I wanted to do exactly that. I have used the library already before and thought it might be an easy plan.

Distorted Reality…

Reality hit me hard when I realized that the preview is totally distorted:

The Good and the Bad of Ionic Mobile Development

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So, you’re going to build a mobile app. Your thoughts might then turn to develop an app for the two main platforms – Android (using Java or Kotlin) and iOS (using Swift or Objective C) – natively. Native development offers high performance, easy access to hardware controls, API integration, and full functionality. But native app expenses are doubled (or even tripled), depending on how many platforms you want to cover. That means two separate apps, two codebases, two development teams, and expenses for all of it – more than a little daunting. 

Instead, you can create a cross-platform app with the help of tools like Xamarin and React Native. These are close to native in performance and allow for code-sharing between the platforms, thus reducing the overall expenses on development. Still, you will need to hire native developers to do specific tasks in each of the codebases.

Best PHP Frameworks (2019)

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In this article, we will be discussing the Best PHP Frameworks along with their pros and cons in great depth so that one might get a clear understanding of which one to chose. Our comprehensive research would include some Latest PHP Frameworks.

Table of Contents

‘Headless’ Is Where the Modern CMS Is Headed

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Headless content management systems (CMSs) are what everyone seems to be talking about these days. Let’s explore how the trend started and whether “the headless way” could become the next best practice.

What Is a Headless CMS?

A headless content management system is a back-end onlyCMS built from the ground-up with the cloud-first and API-first approach in mind. It decouples content from its front-end presentation and breaks it into components that can be further called upon by various services over a RESTful communication.

13 Reasons That Suggests React Is Taking the Web Development World by Storm

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Though the far-reaching implications of Pete Hunt’s announcement of Facebook’s release of React to the Open Source domain may not have been immediately understood, it was a decision that would usher in a revolution in the world of web development. However, the subsequent popularity of React and its wide adoption by both established frontend developers as well as those grinding it out in the bootcamps clearly underlines its importance in the world of web development.

13 Reasons why React Is Taking the Web Development World by Storm:

1. Using components over templates.
React implemented the idea of breaking up large user component codes into smaller individual components. React developers can wrap up small parts of the larger HTML codebase into individual components and then invoke the HTML-like component.

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