quasar/src/composables/use-render-cache/use-render-cache.js

Build high-performance VueJS user interfaces (SPA, PWA, SSR, Mobile and Desktop) in record time

export default function useRenderCache() {
  let cache = Object.create(null)

  return {
    getCache: __QUASAR_SSR_SERVER__
      ? (_, defaultValue) =>
          typeof defaultValue === 'function' ? defaultValue() : defaultValue
      : (key, defaultValue) =>
          cache[key] === void 0
            ? (cache[key] =
                typeof defaultValue === 'function'
                  ? defaultValue()
                  : defaultValue)
            : cache[key],

    setCache(key, obj) {
      cache[key] = obj
    },

    hasCache(key) {
      return Object.hasOwnProperty.call(cache, key)
    },

    clearCache(key) {
      if (key !== void 0) {
        delete cache[key]
      } else {
        cache = Object.create(null)
      }
    }
  }
}