vscode npm command

task.json

{
	"version": "0.1.0",
	"command": "npm",
	"isShellCommand": true,
	"tasks": [
		{
			"taskName": "run",
			// Make this the default build command.
			"isBuildCommand": true,
            "args": ["build"],
			// Show the output window only if unrecognized errors occur.
			"showOutput": "silent"
		}
	]
}