Function trySubscribe

frontend/public/swagger-ui-bundle.js:56715–56754

()

          function handleChangeWrapper() {
            w.onStateChange && w.onStateChange()
          }
          function trySubscribe() {
            ;(u++,
              i ||
                ((i = o ? o.addNestedSub(handleChangeWrapper) : s.subscribe(handleChangeWrapper)),
                (a = (function createListenerCollection() {
                  let s = null,
                    o = null
                  return {
                    clear() {
                      ;((s = null), (o = null))
                    },
                    notify() {
                      defaultNoopBatch(() => {
                        let o = s
                        for (; o; ) (o.callback(), (o = o.next))
                      })
                    },
                    get() {
                      const o = []
                      let i = s
                      for (; i; ) (o.push(i), (i = i.next))
                      return o
                    },
                    subscribe(i) {
                      let a = !0
                      const u = (o = { callback: i, next: null, prev: o })
                      return (
                        u.prev ? (u.prev.next = u) : (s = u),
                        function unsubscribe() {
                          a &&
                            null !== s &&
                            ((a = !1),
                            u.next ? (u.next.prev = u.prev) : (o = u.prev),
                            u.prev ? (u.prev.next = u.next) : (s = u.next))
                        }
                      )
                    },
                  }
                })())))
          }
          function tryUnsubscribe() {
            ;(u--, i && 0 === u && (i(), (i = void 0), a.clear(), (a = Ak)))