If your versions are current, you can skip to the next section. Those are the current long-term-support versions at the moment, as I can tell from looking at. On my computer, the Node.js version reported is v6.9.5 and the NPM version is 3.10.10. To find out whether they are installed, and if so, which versions are installed, go to a console or terminal prompt and type the following two commands: $ node -v With that said, let’s install the software and get started.īefore you do anything else, you need to install Node.js and NPM, the Node package manager, because they underlie much of Angular’s installation and tooling. Get started: Install Angular, TypeScript, and Visual Studio Code With TypeScript, at least when I’ve added the optional types, classes, modules, and interfaces, I feel much more secure. With JavaScript, I really never know whether bugs are lurking in the code waiting to bite me, no matter how often I run JSHint. I find it to be much more productive to work on a large TypeScript project than to work on a large JavaScript project. The simple process of determining whether your types are correct at compile time eliminates a large class of common JavaScript errors, and knowing the types allows editors, tools, and IDEs to be more helpful with code completion, refactoring, and code checking. In general, TypeScript applications are easier to maintain at production scale than JavaScript. About TypeScriptĪngular is implemented in TypeScript, a duck-typed superset of JavaScript that transpiles to JavaScript. On the other hand, Angular has a huge ecosystem that fills the gaps in Angular’s documentation with third-party web tutorials, videos, and books. That’s an issue you’ll have to decide for yourself, as I’ve found myself on different sides of the question for different projects.Īngular does have some documentation issues, frequent backward-compatibility problems, and many concepts for a new developer to learn. Another school of thought says that having everything a program does declared in one place makes it easier to develop and understand. One school of thought says that mixing logic with presentation is a cardinal sin. Angular does use inversion of control (IoC) and dependency injection (DI) patterns, and fixes some problems with the AngularJS implementation of these.Īngular uses directives and components that mix logic with HTML markup. It’s not Polymer, which creates real Web Components, although you can use Polymer Web Components in Angular applications if you wish. Like its predecessor, it does data binding easily and well.Īngular uses a web component pattern, but not Web Components per se. Angular, as a complete rewrite from AngularJS, was designed from the ground up for use on mobile devices and for high performance. In general Angular has good tooling and is suitable for really large, high-traffic projects. Ideally, you should pick the framework that’s appropriate for your app, taking into account the skills in your organization and the frameworks you are using in other applications. I’m not here to proselytize Angular, but I do want you to know its advantages and disadvantages. The differences between these three closely related patterns are the sorts of things that programmers love to argue about fiercely the Angular developers decided to opt out of the discussion.ĭownload this Angular tutorial in convenient PDF format InfoWorld Why Angular? And when is it not a good choice?Ĭhoosing a JavaScript framework for a web app is the sort of process that sets off religious wars among developers. The weird-sounding “model-view-whatever” pattern is an attempt to include the model-view-controller (MVC), model-view-view-model (MVVM), and model-view-presenter (MVP) patterns under one moniker. The new Angular is written in TypeScript rather than JavaScript, which has many benefits, as I’ll explain. Angular is especially good for developing single-page web applications and linking HTML forms to models and JavaScript controllers. In 2015, when InfoWorld awarded AngularJS a Bossie Award, I explained that it is a model-view-whatever (MVW) JavaScript AJAX framework that extends HTML with markup for dynamic views and two-way data binding. In addition to its own extensive capabilities, the Angular platform has a strong external ecosystem: Several prominent IDEs support Angular, it has four data libraries, there are half a dozen useful tools and over a dozen sets of UI components, and there are dozens of Angular books and courses. The Angular core development team is split between Google employees and a robust community it’s not going away any time soon. Angular is popular for building high-volume websites and it supports web, mobile web, native mobile, and native desktop applications. Angular, the successor to AngularJS, is a development platform for building mobile and desktop applications using TypeScript and/or JavaScript and other languages.
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