Please provide an example for JSON object assignment. Something equivalent to this:

npx jq '.scripts.build = "sass --load-path=./scss ./scss/style.scss:./css/style.css"' package.json

That is to add a value to json like this:

{
  "name": "some-library",
  "version": "1.0.0",
  "scripts": {
    "test": "some test"
  },
}

And turn it into this:

{
  "name": "some-library",
  "version": "1.0.0",
  "scripts": {
    "build": "sass --load-path=./scss ./scss/style.scss:./css/style.css",
    "test": "some test"
  },
}

There is no example or guide how to reference a value in the existing JSON object input. Would really know how to do it. Thanks.