Function isStack

frontend/public/swagger-ui-bundle.js:4132–4134

(s)

              return null == s ? emptyStack() : isStack(s) ? s : emptyStack().unshiftAll(s)
            }
            function isStack(s) {
              return !(!s || !s[ct])
            }
            ;((it[u] = !0),
              (it.__empty = emptyOrderedSet),
              (it.__make = makeOrderedSet),