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  * (c) 2019 Evan You
  * @license MIT
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xt(t,"beforeRouteEnter",(t,r,o,i)=>(function(t,e,n,r,o){return function(i,s,a){return t(i,s,t=>{"function"==typeof t&&r.push(()=>{!function t(e,n,r,o){n[r]&&!n[r]._isBeingDestroyed?e(n[r]):o()&&setTimeout(()=>{t(e,n,r,o)},16)}(t,e.instances,n,o)}),a(t)})}})(t,o,i,e,n))}(u,t,()=>this.current===n).concat(this.router.resolveHooks),p,()=>{if(this.pending!==n)return s();this.pending=null,r(n),this.router.app&&this.router.app.$nextTick(()=>{t.forEach(t=>{t()})})})})}updateRoute(t){const e=this.current;this.current=t,this.cb&&this.cb(t),this.router.afterHooks.forEach(n=>{n&&n(t,e)})}}function xt(t,e,n,r){const o=yt(t,(t,r,o,i)=>{const s=function(t,e){"function"!=typeof t&&(t=N.extend(t));return t.options[e]}(t,e);if(s)return Array.isArray(s)?s.map(t=>n(t,r,o,i)):n(s,r,o,i)});return mt(r?o.reverse():o)}function kt(t,e){if(e)return function(){return t.apply(e,arguments)}}class Rt extends vt{constructor(t,e){super(t,e);const n=t.options.scrollBehavior,r=st&&n;r&&G();const o=Et(this.base);window.addEventListener("popstate",e=>{const n=this.current,i=Et(this.base);this.current===d&&i===o||this.transitionTo(i,e=>{r&&Z(t,e,n,!0)})})}go(t){window.history.go(t)}push(t,e,n){const{current:r}=this;this.transitionTo(t,t=>{pt(v(this.base+t.fullPath)),Z(this.router,t,r,!1),e&&e(t)},n)}replace(t,e,n){const{current:r}=this;this.transitionTo(t,t=>{lt(v(this.base+t.fullPath)),Z(this.router,t,r,!1),e&&e(t)},n)}ensureURL(t){if(Et(this.base)!==this.current.fullPath){const e=v(this.base+this.current.fullPath);t?pt(e):lt(e)}}getCurrentLocation(){return Et(this.base)}}function Et(t){let e=decodeURI(window.location.pathname);return t&&0===e.indexOf(t)&&(e=e.slice(t.length)),(e||"/")+window.location.search+window.location.hash}class $t extends vt{constructor(t,e,n){super(t,e),n&&function(t){const e=Et(t);if(!/^\/#/.test(e))return window.location.replace(v(t+"/#"+e)),!0}(this.base)||At()}setupListeners(){const t=this.router.options.scrollBehavior,e=st&&t;e&&G(),window.addEventListener(st?"popstate":"hashchange",()=>{const t=this.current;At()&&this.transitionTo(Ot(),n=>{e&&Z(this.router,n,t,!0),st||St(n.fullPath)})})}push(t,e,n){const{current:r}=this;this.transitionTo(t,t=>{jt(t.fullPath),Z(this.router,t,r,!1),e&&e(t)},n)}replace(t,e,n){const{current:r}=this;this.transitionTo(t,t=>{St(t.fullPath),Z(this.router,t,r,!1),e&&e(t)},n)}go(t){window.history.go(t)}ensureURL(t){const e=this.current.fullPath;Ot()!==e&&(t?jt(e):St(e))}getCurrentLocation(){return Ot()}}function At(){const t=Ot();return"/"===t.charAt(0)||(St("/"+t),!1)}function Ot(){let t=window.location.href;const e=t.indexOf("#");if(e<0)return"";const n=(t=t.slice(e+1)).indexOf("?");if(n<0){const e=t.indexOf("#");t=e>-1?decodeURI(t.slice(0,e))+t.slice(e):decodeURI(t)}else n>-1&&(t=decodeURI(t.slice(0,n))+t.slice(n));return t}function Ct(t){const e=window.location.href,n=e.indexOf("#");return`${n>=0?e.slice(0,n):e}#${t}`}function jt(t){st?pt(Ct(t)):window.location.hash=t}function St(t){st?lt(Ct(t)):window.location.replace(Ct(t))}class Tt extends vt{constructor(t,e){super(t,e),this.stack=[],this.index=-1}push(t,e,n){this.transitionTo(t,t=>{this.stack=this.stack.slice(0,this.index+1).concat(t),this.index++,e&&e(t)},n)}replace(t,e,n){this.transitionTo(t,t=>{this.stack=this.stack.slice(0,this.index).concat(t),e&&e(t)},n)}go(t){const n=this.index+t;if(n<0||n>=this.stack.length)return;const r=this.stack[n];this.confirmTransition(r,()=>{this.index=n,this.updateRoute(r)},t=>{e(bt,t)&&(this.index=n)})}getCurrentLocation(){const t=this.stack[this.stack.length-1];return t?t.fullPath:"/"}ensureURL(){}}class _t{constructor(t={}){this.app=null,this.apps=[],this.options=t,this.beforeHooks=[],this.resolveHooks=[],this.afterHooks=[],this.matcher=X(t.routes||[],this);let e=t.mode||"hash";switch(this.fallback="history"===e&&!st&&!1!==t.fallback,this.fallback&&(e="hash"),K||(e="abstract"),this.mode=e,e){case"history":this.history=new Rt(this,t.base);break;case"hash":this.history=new $t(this,t.base,this.fallback);break;case"abstract":this.history=new Tt(this,t.base)}}match(t,e,n){return this.matcher.match(t,e,n)}get currentRoute(){return this.history&&this.history.current}init(t){if(this.apps.push(t),t.$once("hook:destroyed",()=>{const e=this.apps.indexOf(t);e>-1&&this.apps.splice(e,1),this.app===t&&(this.app=this.apps[0]||null)}),this.app)return;this.app=t;const e=this.history;if(e instanceof Rt)e.transitionTo(e.getCurrentLocation());else if(e instanceof $t){const t=()=>{e.setupListeners()};e.transitionTo(e.getCurrentLocation(),t,t)}e.listen(t=>{this.apps.forEach(e=>{e._route=t})})}beforeEach(t){return Lt(this.beforeHooks,t)}beforeResolve(t){return Lt(this.resolveHooks,t)}afterEach(t){return Lt(this.afterHooks,t)}onReady(t,e){this.history.onReady(t,e)}onError(t){this.history.onError(t)}push(t,e,n){if(!e&&!n&&"undefined"!=typeof Promise)return new Promise((e,n)=>{this.history.push(t,e,n)});this.history.push(t,e,n)}replace(t,e,n){if(!e&&!n&&"undefined"!=typeof Promise)return new Promise((e,n)=>{this.history.replace(t,e,n)});this.history.replace(t,e,n)}go(t){this.history.go(t)}back(){this.go(-1)}forward(){this.go(1)}getMatchedComponents(t){const e=t?t.matched?t:this.resolve(t).route:this.currentRoute;return e?[].concat.apply([],e.matched.map(t=>Object.keys(t.components).map(e=>t.components[e]))):[]}resolve(t,e,n){const r=B(t,e=e||this.history.current,n,this),o=this.match(r,e),i=o.redirectedFrom||o.fullPath;return{location:r,route:o,href:function(t,e,n){var r="hash"===n?"#"+e:e;return t?v(t+"/"+r):r}(this.history.base,i,this.mode),normalizedTo:r,resolved:o}}addRoutes(t){this.matcher.addRoutes(t),this.history.current!==d&&this.history.transitionTo(this.history.getCurrentLocation())}}function Lt(t,e){return t.push(e),()=>{const n=t.indexOf(e);n>-1&&t.splice(n,1)}}_t.install=function t(e){if(t.installed&&N===e)return;t.installed=!0,N=e;const n=t=>void 0!==t,o=(t,e)=>{let r=t.$options._parentVnode;n(r)&&n(r=r.data)&&n(r=r.registerRouteInstance)&&r(t,e)};e.mixin({beforeCreate(){n(this.$options.router)?(this._routerRoot=this,this._router=this.$options.router,this._router.init(this),e.util.defineReactive(this,"_route",this._router.history.current)):this._routerRoot=this.$parent&&this.$parent._routerRoot||this,o(this,this)},destroyed(){o(this)}}),Object.defineProperty(e.prototype,"$router",{get(){return this._routerRoot._router}}),Object.defineProperty(e.prototype,"$route",{get(){return this._routerRoot._route}}),e.component("RouterView",r),e.component("RouterLink",D);const i=e.config.optionMergeStrategies;i.beforeRouteEnter=i.beforeRouteLeave=i.beforeRouteUpdate=i.created},_t.version="3.1.2",K&&window.Vue&&window.Vue.use(_t);export default _t;