Last month I wrote an article for MacStories on the extensibility and automation changes in OS X Yosemite. The second half was a basic overview of JavaScript for Automation (JXA) (the new addition to OS X scripting languages) joining AppleScript. Before writing that section of the article, I wanted to learn the basics of JXA. With this, you can use JavaScript to build native Windows apps for all devices supported by Windows 10 including PCs, tablets, 2-in-1s, Xbox, Mixed reality devices. JavaScript editor and IDE for macOS / Mac OS X, Windows, and Linux features such as syntax highlighting, the JavaScript code builder, the JavaScript code assistant, and the JavaScript.
Visual Studio for Mac provides support for JavaScript and TypeScript through syntax highlighting, code formatting, and IntelliSense.
For more information on writing JavaScript, see to the Writing JavaScript Code guides.
Adding a JavaScript file
JavaScript files are most often added to ASP.NET Core projects through the New File dialog. To add a javascript file, right-click on your project and go to Add > New File:
From the New File dialog, select Web > Empty JS file or Web > TypeScript file. Give it a name and then choose New:
IntelliSense
Visual Studio for Mac uses the JavaScript Language Service to provide IntelliSense, allowing you to have intelligent code completion, parameter info, and member lists when writing code.
JavaScript IntelliSense in Visual Studio for Mac can be based on type inference, JSDoc, or TypeScript declarations.
Javascript For Mac Os X
Type inference – The type of an object is figured out by the surrounding code context. For more information, see Visual Studio's section on IntelliSense based on type inference.
JSDoc – There are times when type inference doesn't provide the correct type information. In these cases, the type information can be provided explicitly by JSDoc annotations. For more information, see Visual Studio's section on IntelliSense based on JSDoc
TypeScript declaration files –
.d.ts
files are used to provide values for JavaScript IntelliSense. Types declared in that file can be used as types on JSDoc comments. For more information, see Visual Studio's section on IntelliSense based on TypeScript declaration files