We clone the vscode repository, we lay down a customized product.json that has Microsoft specific functionality (telemetry, gallery, logo, etc.), and then produce a build that we release under our license. When you clone and build from the vscode repo, none of these endpoints are configured in the default product.json. Today, we are excited to announce the general availability of Visual Studio 2019 for Mac – the next major version of our.NET IDE on the Mac. This release is now available as an update in the Stable channel for existing Visual Studio for Mac users. VSCode 快捷键 Mac. Intellij快捷键 官方/个人 Mac/Windows. F1 Alt + F1 显示当前文件选择目标弹出层,弹出层中有很多目标可以进行选择 Ctrl + F1 在光标所在的错误代码处显示错误信息 Shift + F1 如果有外部文档可以连接外部文档 2. F2 F2 跳转到下一个高亮.
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F# and the Visual F# tooling are supported in the Visual Studio for Mac IDE. Ensure that you have Visual Studio for Mac installed.
Creating a console application
One of the most basic projects in Visual Studio for Mac is the Console Application. Here's how to do it. Once Visual Studio for Mac is open:
Writing your code
Let's get started by writing some code first. Make sure that the
Program.fs file is open, and then replace its contents with the following:
In the previous code sample, a function
square has been defined which takes an input named x and multiplies it by itself. Because F# uses Type Inference, the type of x doesn't need to be specified. The F# compiler understands the types where multiplication is valid, and will assign a type to x based on how square is called. If you hover over square , you should see the following:
This is what is known as the function's type signature. It can be read like this: 'Square is a function which takes an integer named x and produces an integer'. Note that the compiler gave
square the int type for now - this is because multiplication is not generic across all types, but rather is generic across a closed set of types. The F# compiler picked int at this point, but it will adjust the type signature if you call square with a different input type, such as a float .
Another function,
main , is defined, which is decorated with the EntryPoint attribute to tell the F# compiler that program execution should start there. It follows the same convention as other C-style programming languages, where command-line arguments can be passed to this function, and an integer code is returned (typically 0 ).
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It is in this function that we call the
square function with an argument of 12 . The F# compiler then assigns the type of square to be int -> int (that is, a function which takes an int and produces an int ). The call to printfn is a formatted printing function which uses a format string, similar to C-style programming languages, parameters which correspond to those specified in the format string, and then prints the result and a new line.
Running your code
You can run the code and see results by clicking on Run from the top level menu and then Start Without Debugging. This will run the program without debugging and allows you to see the results.
You should now see the following printed to the console window that Visual Studio for Mac popped up:
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Congratulations! You've created your first F# project in Visual Studio for Mac, written an F# function printed the results of calling that function, and run the project to see some results.
Using F# Interactive
One of the best features of the Visual F# tooling in Visual Studio for Mac is the F# Interactive Window. It allows you to send code over to a process where you can call that code and see the result interactively.
To begin using it, highlight the
square function defined in your code. Next, click on Edit from the top level menu. Next select Send selection to F# Interactive. This executes the code in the F# Interactive Window. Alternatively, you can right click on the selection and choose Send selection to F# Interactive. You should see the F# Interactive Window appear with the following in it:
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This shows the same function signature for the
square function, which you saw earlier when you hovered over the function. Because square is now defined in the F# Interactive process, you can call it with different values:
This executes the function, binds the result to a new name
it , and displays the type and value of it . Note that you must terminate each line with ;; . This is how F# Interactive knows when your function call is finished. You can also define new functions in F# Interactive:
The above defines a new function,
isOdd , which takes an int and checks to see if it's odd! You can call this function to see what it returns with different inputs. You can call functions within function calls:
You can also use the pipe-forward operator to pipeline the value into the two functions:
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The pipe-forward operator, and more, are covered in later tutorials.
This is only a glimpse into what you can do with F# Interactive. To learn more, check out Interactive Programming with F#.
Next stepsInstall Visual Studio Code Mac
If you haven't already, check out the Tour of F#, which covers some of the core features of the F# language. It will give you an overview of some of the capabilities of F#, and provide ample code samples that you can copy into Visual Studio for Mac and run. There are also some great external resources you can use, showcased in the F# Guide.
Vs Code Free DownloadSee also
Install Vscode For Mac
Visual Studio Code for Mac is a powerful code editor redefined and optimized for building and debugging modern web and cloud applications. The app provides developers with a new choice of developer tool that combines the simplicity and streamlined experience of a code editor with the best of what developers need for their core code-edit-debug cycle. Visual Studio Code is the first code editor, and first cross-platform development tool - supporting OSX, Linux, and Windows - in the Visual Studio family.
At its heart, Visual Studio Code features a powerful, fast code editor great for day-to-day use. The Preview release of Code already has many of the features developers need in a code and text editor, including navigation, keyboard support with customizable bindings, syntax highlighting, bracket matching, auto indentation, and snippets, with support for dozens of languages. Meet IntelliSense Go beyond syntax highlighting and autocomplete with IntelliSense, which provides smart completions based on variable types, function definitions, and imported modules. Print statement debugging is a thing of the past Debug code right from the editor. Launch or attach to your running apps and debug with break points, call stacks, and an interactive console. Git commands built-in Working with Git has never been easier. Review diffs, stage files, and make commits right from the editor. Push and pull from any hosted Git service. Extensible and customizable Want even more features? Install extensions to add new languages, themes, debuggers, and to connect to additional services. Extensions run in separate processes, ensuring they won't slow down your editor. Note: Requires 64-bit processor. Also Available: Download Visual Studio Code for Windows Comments are closed.
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