vscode/extensions/json-language-features/.vscode/tasks.json

// Available variables which can be used inside of strings.
// ${workspaceFolder}: the root folder of the team
// ${file}: the current opened file
// ${fileBasename}: the current opened file's basename
// ${fileDirname}: the current opened file's dirname
// ${fileExtname}: the current opened file's extension
// ${cwd}: the current working directory of the spawned process

// A task runner that calls a custom npm script that compiles the extension.
{
	"version": "0.1.0",

	// we want to run npm
	"command": "npm",

	// the command is a shell script
	"isShellCommand": true,

	// show the output window only if unrecognized errors occur.
	"showOutput": "silent",

	// we run the custom script "compile" as defined in package.json
	"args": ["run", "compile"],

	// The tsc compiler is started in watching mode
	"isWatching": true,

	// use the standard tsc in watch mode problem matcher to find compile problems in the output.
	"problemMatcher": "$tsc-watch"
}