Semver: A Primer

Prefixing a single semver version string with the ^ character defines a range of acceptable versions that include all patch and minor versions from the ones specified up to, but not including, the next version. So "^1.2.3" can be approximately expanded as ">=1.2.3 <2.0.0".

Unlike ~, the ^ operator with a major version of 0 is essentially a no-op, in that it translates to exactly that version rather than a full range. So "^0.2.3" is equal to just "0.2.3" and no more.

If you don't need any templating languages and just need to get a simple site built plus Sass, use this as the contents of a fresh package.json:

npm start - copies src files to public and starts Browsersync server at localhost:3000
npm run build - copies files to public and autoprefixes/minifies css

If you use NPM in your day-to-day workflow, I’m sure you will like these tips.