Taking the following scripts section from a package.json:
package.json
\"scripts\":{ \"sass:watch\": \"npm run sass -- -w ./src/public/stylesheets -r --s
you could try the concurrently package for npm
npm install concurrently --save-dev
then use it to run both of your script:
"dev:watch": "concurrently \" npm run sass:watch \" \" npm run livereload \" ",
you can find info about the package here: https://www.npmjs.com/package/concurrently