essentially Weakmaps are a collection of keys and values with the main constraint being the key has to be an object. 

ADO.Net has a very tedious API out of the box, so Weasel alleviates that with quite a few extension methods to make your code a little quicker to write and hopefully much easier to read later as well. 

ML.NET is a cross-platform, open source machine learning framework for .NET developers. We want to enable every .NET developer to train and use machine learning models in their applications and services.

Here’s a look at a handful of the changes since our last alpha:

• Overhauled spacing utilities to use a numerical tiering (to avoid confusion with grid tiers).
• Continued refactoring efforts to replace markup-specific selectors with classes across several components (including pagination, lists, and more). Still more to do here with additional components.
• Reverted media queries and grid containers from rems to pixels as viewports are not affected by font-size. See #17403 for details. We’ve got a ton of grid work left, too. Feel free to follow along with#18471.
• Reverted .0625rem width borders to 1px for more consistent component borders that avoid zoom and font-size bugs across browsers.
• Renamed .img-responsive to .img-fluid to avoid future confusion on the various responsive image solutions out there.
• Replaced ZeroClipboard with clipboard.js for Flash-independent copy buttons.
• Inputs and buttons now share the same border variable to ensure components are always sized similarly.
• Updated all pseudo-element selectors to use the spec’s preferred double colon (e.g., ::before as opposed to :before).
• Cards now have outline variants and mixins to support extending base classes further.
• Utility classes for floats and text alignment now have responsive ranges. This means we’ve dropped the non-responsive classes to avoid duplication.
• Added support for jQuery 2.
• And hundreds more Sass improvements, bug fixes, documentation updates, and more. 

For decades, passwords have been the common backbone (headache) of authentication and are well known to lack in security while being frustrating and difficult to use. As we continue to see daily data breaches, the reality of moving away from weak static credentials and killing the password is upon us. Join this session to learn how FIDO2 and WebAuthn open authentication standards, in conjunction with YubiKeys, are solving the elimination of passwords at scale. Hear how organizations like Microsoft have implemented these standards for a true passwordless experience and find out how your organization can follow suit. You'll gain a greater understanding of how to achieve a modern and flexible security architecture through the use of FIDO open standards and hardware authenticators. 

It is common when working on a web application, comprised of a server-side Web API, running on a framework like ASP.NET or NestJS, and a client-side Single Page Application (SPA), running on a framework like Angular, to refer to the server-side as "the back-end" and to the client-side as "the front-end". I've been a culprit of this until recently.  

Microsoft has released April Patch Tuesday, security updates with a total of 108 vulnerabilities in the family of Windows operating systems and related products. In the release by Microsoft, 19 were rated as Critical and 89 as Important. Six Chromium Edge vulnerabilities released earlier this month have not been included in these numbers. 

The toolkit contains various controls (labesl, text entry, buttons, radio buttons, checkboxes, dialog boxes, windows, menus) for building text user interfaces, a main loop, is designed to work on Curses and the Windows Console, works well on both color and monochrome terminals and has mouse support on terminal emulators that support it.  

With the new Version 7, Entity Framework is moving away from legacy systems and duplications which have accumulated in recent years. As a slim-line new development it will be available for .NET Core, and therefore also WinRT, whilst in addition allowing access to NoSQL databases.This session will show exactly what has changed and how you can benefit from the new possibilities. 

At Build 2019, Microsoft announced the release date for .NET Core 3.0 to be this coming September. This release includes the highly touted support for desktop platforms like WinForms and WPF. Today, there’s still a large developer base that’s building desktop applications using these .NET Windows desktop frameworks and by using .NET Core 3.0, you can now build desktop applications on the .NET Core platform.