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ASP.NET Core 5 MVC is a powerful and lightweight framework designed for building dynamic, scalable web applications. Built on the ASP.NET Core 5 runtime, it supports a range of features that allow developers to manage both request and response headers. These headers are key-value pairs sent between the server and the client, conveying essential information such as content type, authorization credentials, and custom metadata. In this article, we will explore how to read request headers in an ASP.NET Core 5 MVC application. Specifically, we will make use of the Request.Headers collection, which is part of the Microsoft.AspNetCore.Http.Headers namespace. This collection…

Kotlin 1.5.0, the latest stable release of JetBrains’ statically typed programming language, brings significant updates aimed at improving the language’s interoperability with Java and enhancing its feature set. A standout addition is the stable support for JVM records, which allows Kotlin to work seamlessly with Java’s latest record feature. JVM records provide a more concise way to define classes that are intended solely for holding immutable data, enabling developers to create simple data containers without boilerplate code. This new functionality aligns Kotlin with modern Java standards, making it easier for developers to work with both languages in the same project.…

Instagram has open-sourced Cinder, a high-performance fork of CPython 3.8, now available as a Facebook Incubator project on GitHub. The primary goal behind releasing Cinder is to create a faster and more unified version of CPython, addressing some of the performance bottlenecks inherent in the reference implementation of Python. By sharing Cinder as an open-source project, Instagram hopes to foster discussions about incorporating some of its performance improvements into CPython itself, while reducing redundancy in ongoing performance efforts for Python. Cinder incorporates several performance-enhancing features to boost Python’s execution speed. These include bytecode inline caching, which dynamically optimizes frequently used…

Google has introduced Sparkplug, a new compiler designed to improve JavaScript performance in Chrome, debuting with Chrome 91. Sparkplug is integrated into the V8 JavaScript/WebAssembly engine and aims to offer a faster, more efficient compilation process. Unlike traditional optimizing compilers, Sparkplug is described as a “super-fast” non-optimizing compiler, focused on delivering quick performance without the need for extensive optimizations. Positioned between the Ignition interpreter and the TurboFan optimizing compiler in the V8 pipeline, Sparkplug represents a novel approach to enhancing JavaScript execution speed. What sets Sparkplug apart from other compilers is its method of compiling bytecode rather than directly compiling…

TypeScript 4.3, the latest stable release of Microsoft’s typed superset of JavaScript, introduces significant updates aimed at improving the developer experience. One of the standout features of this version is the ability to specify types for both reading and writing to object properties. This enhancement is particularly useful for developers working with APIs that convert values in TypeScript, where there has traditionally been a trade-off between being “precise” and being “permissive.” Previously, developers had to choose between making reading values easier at the cost of writing them or vice versa. With TypeScript 4.3, it’s now possible to achieve more control…

Closures are a powerful concept often found in functional programming languages, allowing functions to maintain access to variables from their surrounding environment even after they have finished executing. In C#, closures are supported through anonymous methods, lambda expressions, and delegates. These features enable developers to create more flexible and concise code, where functions can capture and remember the values of variables in their scope, even if those variables go out of scope later. While anonymous methods and lambda expressions are well-known in C# programming, another important concept related to closures is the delegate. A delegate in C# is a type-safe…

Microsoft has officially launched the Microsoft Build of OpenJDK, making it generally available for developers seeking a no-cost, open-source distribution of Java. Released on May 25, following a preview phase that began in April, this build provides an alternative to Oracle’s Java distributions, positioning itself as a competitive option for enterprise software developers. With its open-source nature and commitment to long-term support, the Microsoft Build of OpenJDK aims to meet the needs of organizations that rely heavily on Java for their critical applications. The Microsoft Build of OpenJDK comes with binaries for Java 11, based on OpenJDK 11.0.11+9. This release…

Microsoft has rolled out Visual Studio 2019 v16.10, a significant update to its popular integrated development environment (IDE), with a major emphasis on full support for the C++ 20 standard. Released on May 25, this update ensures that developers can take advantage of the latest features introduced in C++ 20, including new utilities for working with calendars, time zones, and text formatting through the <format> header. With this release, Microsoft’s C++ compiler and standard library are now fully compliant with C++ 20, allowing developers to build applications with the most current features available in the language. In addition to the…

Every year seems to bring fresh innovations to the world of JavaScript, and 2021 is no exception. The latest developments in bundlers and build tools are redefining the JavaScript development landscape, offering improvements in speed, user experience, and production quality. These new tools challenge the status quo of “good enough” solutions and are making a significant impact on how developers build and optimize applications. Among the standout tools in this new generation are ESM, esbuild, Parcel, pnpm, Rollup, Snowpack, and Vite. These tools are designed with a focus on making JavaScript development faster, more efficient, and more reliable. Whether you’re…

The Eclipse Foundation’s Jakarta EE working group has unveiled Jakarta EE 9.1, which includes new Platform and Web Profile specifications designed to enhance compatibility with Java Standard Edition 11. This release allows developers to leverage the features of Java SE 11, the current long-term support (LTS) release of Java SE, when building and deploying Jakarta EE applications. Jakarta EE 9.1 also maintains support for Java SE 8, offering flexibility for teams working with different versions of Java. With Jakarta EE 9.1, developers can seamlessly incorporate Java SE 11 features into their enterprise applications. One of the key benefits of this…