liquor-tree-withoutdragndrop/src/utils/uuidV4.js

A Vue.js tree component.

// it is not genuine GUIDs

function s4 () {
  return Math.floor((1 + Math.random()) * 0x10000)
    .toString(16)
    .substring(1)
}

export default function uuidV4 () {
  return s4() + s4() + '-' + s4() + '-' + s4() + '-' +
    s4() + '-' + s4() + s4() + s4()
}