Function vueNonReactiveInstall

app/core/utils.js:1305–1316

(Vue)

// to prevent Vue traversing our large and expensive game objects.
// Reference Library: https://github.com/rpkilby/vue-nonreactive
const vueNonReactiveInstall = function (Vue) {
  const Observer = (new Vue())
    .$data
    .__ob__
    .constructor

  return Vue.nonreactive = function (value) {
    // Vue sees the noop Observer and stops traversing the structure.
    value.__ob__ = new Observer({})
    return value
  }
}

const yearsSinceMonth = function (birth, now) {
  if (!birth) { return undefined }