hellotypescript

learning basic typescript following instructions https://code.visualstudio.com/docs/typescript/typescript-tutorial

What I learned with this?

Typescript compiler installed with npm install typescript -g globally and with npm install typescript --save-dev locally. Open Visual Studio Code, open a Terminal. tsc .\helloworld.ts will transpile to js file the js can be run with node node .\helloworld.js

added a tsconfig.json file

{
    "compilerOptions": {
        "target": "es2018",
        "module": "commonjs",
        "sourceMap": true,
        "outDir": "out"
    }
}

Now calling tscwill transpile everything and put the result in the out folder including sourcemaps.

Launch F5 debug run

pressing F5, VS Code asks what kind of project, answer node. VS Code will create launch.json launch settings in .vscode folder.

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "type": "node",
            "request": "launch",
            "name": "Launch Program",
            "program": "${workspaceFolder}\\helloworld.ts",
            "preLaunchTask": "tsc: build - tsconfig.json",
            "outFiles": [
                "${workspaceFolder}/out/**/*.js"
            ]
        }
    ]
}

had to change "program": "${workspaceFolder}\\helloworld.ts", to use my ts file.

then set a breakpoint and it stops in the code.