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s=n._popContext();i=n._bitField,0===(65536&i)&&(o===E?n._reject(r):o===R?n._rejectCallback(o.e,!1):(j.checkForgottenReturns(o,s,"",n,this),n._resolveCallback(o)))}},o.prototype._target=function(){for(var t=this;t._isFollowing();)t=t._followee();return t},o.prototype._followee=function(){return this._rejectionHandler0},o.prototype._setFollowee=function(t){this._rejectionHandler0=t},o.prototype._settlePromise=function(t,e,r,i){var s=t instanceof o,a=this._bitField,u=0!==(134217728&a);0!==(65536&a)?(s&&t._invokeInternalOnCancel(),r instanceof P&&r.isFinallyHandler()?(r.cancelPromise=t,I(e).call(r,i)===R&&t._reject(R.e)):e===f?t._fulfill(f.call(r)):r instanceof n?r._promiseCancelled(t):s||t instanceof C?t._cancel():r.cancel()):"function"==typeof e?s?(u&&t._setAsyncGuaranteed(),this._settlePromiseFromHandler(e,r,i,t)):e.call(r,i,t):r instanceof 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this._attachExtraTrace(r),this._reject(r)}this._setFulfilled(),this._rejectionHandler0=t,(65535&e)>0&&(0!==(134217728&e)?this._settlePromises():_.settlePromises(this))}},o.prototype._reject=function(t){var e=this._bitField;if(!((117506048&e)>>>16))return this._setRejected(),this._fulfillmentHandler0=t,this._isFinal()?_.fatalError(t,d.isNode):void((65535&e)>0?_.settlePromises(this):this._ensurePossibleRejectionHandled())},o.prototype._fulfillPromises=function(t,e){for(var r=1;t>r;r++){var n=this._fulfillmentHandlerAt(r),i=this._promiseAt(r),o=this._receiverAt(r);this._clearCallbackDataAtIndex(r),this._settlePromise(i,n,o,e)}},o.prototype._rejectPromises=function(t,e){for(var r=1;t>r;r++){var n=this._rejectionHandlerAt(r),i=this._promiseAt(r),o=this._receiverAt(r);this._clearCallbackDataAtIndex(r),this._settlePromise(i,n,o,e)}},o.prototype._settlePromises=function(){var t=this._bitField,e=65535&t;if(e>0){if(0!==(16842752&t)){var 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p.isIdentifier(t)&&"_"!==t.charAt(0)&&"constructor"!==t},k=function(t){return t.replace(/([$])/,"\\$")},C=_?f:u;e.promisify=function(t,e){if("function"!=typeof t)throw new g("expecting a function but got "+p.classString(t));if(i(t))return t;e=Object(e);var r=void 0===e.context?h:e.context,o=!!e.multiArgs,s=l(t,r,o);return p.copyDescriptors(t,s,n),s},e.promisifyAll=function(t,e){if("function"!=typeof t&&"object"!=typeof t)throw new g("the target of promisifyAll must be an object or a function\n\n    See http://goo.gl/MqrFmX\n");e=Object(e);var r=!!e.multiArgs,n=e.suffix;"string"!=typeof n&&(n=m);var i=e.filter;"function"!=typeof i&&(i=E);var o=e.promisifier;if("function"!=typeof o&&(o=C),!p.isIdentifier(n))throw new RangeError("suffix must be a valid identifier\n\n    See http://goo.gl/MqrFmX\n");for(var s=p.inheritedDataKeys(t),a=0;a<s.length;++a){var u=t[s[a]];"constructor"!==s[a]&&p.isClass(u)&&(c(u.prototype,n,i,o,r),c(u,n,i,o,r))}return 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n=this.length()+3;if(this._willBeOverCapacity(n))return this._pushOne(t),this._pushOne(e),void this._pushOne(r);var i=this._front+n-3;this._checkCapacity(n);var o=this._capacity-1;this[i+0&o]=t,this[i+1&o]=e,this[i+2&o]=r,this._length=n},i.prototype.shift=function(){var t=this._front,e=this[t];return this[t]=void 0,this._front=t+1&this._capacity-1,this._length--,e},i.prototype.length=function(){return this._length},i.prototype._checkCapacity=function(t){this._capacity<t&&this._resizeTo(this._capacity<<1)},i.prototype._resizeTo=function(t){var e=this._capacity;this._capacity=t;var r=this._front,i=this._length,o=r+i&e-1;n(this,0,this,e,o)},e.exports=i},{}],27:[function(t,e,r){"use strict";e.exports=function(e,r,n,i){function o(t,o){var u=n(t);if(u instanceof e)return a(u);if(t=s.asArray(t),null===t)return i("expecting an array or an iterable object but got "+s.classString(t));var c=new e(r);void 0!==o&&c._propagateFrom(o,3);for(var l=c._fulfill,f=c._reject,h=0,p=t.length;p>h;++h){var 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this.store.createIndex(e,t.keyPath,{unique:t.unique,multiEntry:t.multiEntry})},this),n.length&&n.forEach(function(t){this.store.deleteIndex(t)},this)}.bind(this)},deleteDatabase:function(t,e){if(this.idb.deleteDatabase){this.db.close();var r=this.idb.deleteDatabase(this.dbName);r.onsuccess=t,r.onerror=e}else e(new Error("Browser does not support IndexedDB deleteDatabase!"))},put:function(t,e,i,o){null!==this.keyPath&&(o=i,i=e,e=t),o||(o=r),i||(i=n);var s,a=!1,u=null,c=this.db.transaction([this.storeName],this.consts.READ_WRITE);return c.oncomplete=function(){var t=a?i:o;t(u)},c.onabort=o,c.onerror=o,null!==this.keyPath?(this._addIdPropertyIfNeeded(e),s=c.objectStore(this.storeName).put(e)):s=c.objectStore(this.storeName).put(e,t),s.onsuccess=function(t){a=!0,u=t.target.result},s.onerror=o,c},get:function(t,e,i){i||(i=r),e||(e=n);var o=!1,s=null,a=this.db.transaction([this.storeName],this.consts.READ_ONLY);a.oncomplete=function(){var t=o?e:i;t(s)},a.onabort=i,a.onerror=i;var u=a.objectStore(this.storeName).get(t);return u.onsuccess=function(t){o=!0,s=t.target.result},u.onerror=i,a},remove:function(t,e,i){i||(i=r),e||(e=n);var o=!1,s=null,a=this.db.transaction([this.storeName],this.consts.READ_WRITE);a.oncomplete=function(){var t=o?e:i;t(s)},a.onabort=i,a.onerror=i;var u=a.objectStore(this.storeName)["delete"](t);return u.onsuccess=function(t){o=!0,s=t.target.result},u.onerror=i,a},batch:function(t,e,i){if(i||(i=r),e||(e=n),"[object Array]"!=Object.prototype.toString.call(t))i(new Error("dataArray argument must be of type Array."));else if(0===t.length)return e(!0);var o=t.length,s=!1,a=!1,u=this.db.transaction([this.storeName],this.consts.READ_WRITE);u.oncomplete=function(){var t=a?e:i;t(a)},u.onabort=i,u.onerror=i;var c=function(){o--,0!==o||s||(s=!0,a=!0)};return t.forEach(function(t){var e=t.type,r=t.key,n=t.value,o=function(t){u.abort(),s||(s=!0,i(t,e,r))};if("remove"==e){var a=u.objectStore(this.storeName)["delete"](r);a.onsuccess=c,a.onerror=o}else if("put"==e){var l;null!==this.keyPath?(this._addIdPropertyIfNeeded(n),l=u.objectStore(this.storeName).put(n)):l=u.objectStore(this.storeName).put(n,r),l.onsuccess=c,l.onerror=o}},this),u},putBatch:function(t,e,r){var n=t.map(function(t){return{type:"put",value:t}});return this.batch(n,e,r)},upsertBatch:function(t,e,i,o){"function"==typeof e&&(i=e,o=i,e={}),o||(o=r),i||(i=n),e||(e={}),"[object Array]"!=Object.prototype.toString.call(t)&&o(new Error("dataArray argument must be of type Array."));var s=e.keyField||this.keyPath,a=t.length,u=!1,c=!1,l=0,f=this.db.transaction([this.storeName],this.consts.READ_WRITE);f.oncomplete=function(){c?i(t):o(!1)},f.onabort=o,f.onerror=o;var h=function(e){var r=t[l++];r[s]=e.target.result,a--,0!==a||u||(u=!0,c=!0)};return t.forEach(function(t){var e,r=t.key,n=function(t){f.abort(),u||(u=!0,o(t))};null!==this.keyPath?(this._addIdPropertyIfNeeded(t),e=f.objectStore(this.storeName).put(t)):e=f.objectStore(this.storeName).put(t,r),e.onsuccess=h,e.onerror=n},this),f},removeBatch:function(t,e,r){var n=t.map(function(t){return{type:"remove",key:t}});return this.batch(n,e,r)},getBatch:function(t,e,i,o){if(i||(i=r),e||(e=n),o||(o="sparse"),"[object Array]"!=Object.prototype.toString.call(t))i(new Error("keyArray argument must be of type Array."));else if(0===t.length)return e([]);var s=[],a=t.length,u=!1,c=!1,l=null,f=this.db.transaction([this.storeName],this.consts.READ_ONLY);f.oncomplete=function(){var t=c?e:i;t(l)},f.onabort=i,f.onerror=i;var h=function(t){t.target.result||"dense"==o?s.push(t.target.result):"sparse"==o&&s.length++,a--,0===a&&(u=!0,c=!0,l=s)};return t.forEach(function(t){var e=function(t){u=!0,l=t,i(t),f.abort()},r=f.objectStore(this.storeName).get(t);r.onsuccess=h,r.onerror=e},this),f},getAll:function(t,e){e||(e=r),t||(t=n);var i=this.db.transaction([this.storeName],this.consts.READ_ONLY),o=i.objectStore(this.storeName);return o.getAll?this._getAllNative(i,o,t,e):this._getAllCursor(i,o,t,e),i},_getAllNative:function(t,e,r,n){var i=!1,o=null;t.oncomplete=function(){var t=i?r:n;t(o)},t.onabort=n,t.onerror=n;var s=e.getAll();s.onsuccess=function(t){i=!0,o=t.target.result},s.onerror=n},_getAllCursor:function(t,e,r,n){var i=[],o=!1,s=null;t.oncomplete=function(){var t=o?r:n;t(s)},t.onabort=n,t.onerror=n;var a=e.openCursor();a.onsuccess=function(t){var e=t.target.result;e?(i.push(e.value),e["continue"]()):(o=!0,s=i)},a.onError=n},clear:function(t,e){e||(e=r),t||(t=n);var i=!1,o=null,s=this.db.transaction([this.storeName],this.consts.READ_WRITE);s.oncomplete=function(){var r=i?t:e;r(o)},s.onabort=e,s.onerror=e;var a=s.objectStore(this.storeName).clear();return a.onsuccess=function(t){i=!0,o=t.target.result},a.onerror=e,s},_addIdPropertyIfNeeded:function(t){"undefined"==typeof t[this.keyPath]&&(t[this.keyPath]=this._insertIdCount++ +Date.now())},getIndexList:function(){return this.store.indexNames},hasIndex:function(t){return this.store.indexNames.contains(t)},normalizeIndexData:function(t){t.keyPath=t.keyPath||t.name,t.unique=!!t.unique,t.multiEntry=!!t.multiEntry},indexComplies:function(t,e){var r=["keyPath","unique","multiEntry"].every(function(r){if("multiEntry"==r&&void 0===t[r]&&e[r]===!1)return!0;if("keyPath"==r&&"[object Array]"==Object.prototype.toString.call(e[r])){var n=e.keyPath,i=t.keyPath;if("string"==typeof i)return n.toString()==i;if("function"!=typeof i.contains&&"function"!=typeof i.indexOf)return!1;if(i.length!==n.length)return!1;for(var o=0,s=n.length;s>o;o++)if(!(i.contains&&i.contains(n[o])||i.indexOf(-1!==n[o])))return!1;return!0}return e[r]==t[r]});return r},iterate:function(e,n){n=t({index:null,order:"ASC",autoContinue:!0,filterDuplicates:!1,keyRange:null,writeAccess:!1,onEnd:null,onError:r,limit:1/0,offset:0,allowItemRejection:!1},n||{});var i="desc"==n.order.toLowerCase()?"PREV":"NEXT";n.filterDuplicates&&(i+="_NO_DUPLICATE");var o=!1,s=this.db.transaction([this.storeName],this.consts[n.writeAccess?"READ_WRITE":"READ_ONLY"]),a=s.objectStore(this.storeName);n.index&&(a=a.index(n.index));var u=0;s.oncomplete=function(){return o?void(n.onEnd?n.onEnd():e(null)):void n.onError(null)},s.onabort=n.onError,s.onerror=n.onError;var c=a.openCursor(n.keyRange,this.consts[i]);return c.onerror=n.onError,c.onsuccess=function(t){var r=t.target.result;if(r)if(n.offset)r.advance(n.offset),n.offset=0;else{var i=e(r.value,r,s);n.allowItemRejection&&i===!1||u++,n.autoContinue&&(u+n.offset<n.limit?r["continue"]():o=!0)}else o=!0},s},query:function(t,e){var r=[],n=0;return e=e||{},e.autoContinue=!0,e.writeAccess=!1,e.allowItemRejection=!!e.filter,e.onEnd=function(){t(r,n)},this.iterate(function(t){n++;var i=e.filter?e.filter(t):!0;return i!==!1&&r.push(t),i},e)},count:function(e,n){n=t({index:null,keyRange:null},n||{});var i=n.onError||r,o=!1,s=null,a=this.db.transaction([this.storeName],this.consts.READ_ONLY);a.oncomplete=function(){var t=o?e:i;t(s)},a.onabort=i,a.onerror=i;var u=a.objectStore(this.storeName);n.index&&(u=u.index(n.index));var c=u.count(n.keyRange);return c.onsuccess=function(t){o=!0,s=t.target.result},c.onError=i,a},makeKeyRange:function(t){var e,r="undefined"!=typeof t.lower,n="undefined"!=typeof t.upper,i="undefined"!=typeof t.only;switch(!0){case i:e=this.keyRange.only(t.only);break;case r&&n:e=this.keyRange.bound(t.lower,t.upper,t.excludeLower,t.excludeUpper);break;case r:e=this.keyRange.lowerBound(t.lower,t.excludeLower);break;case n:e=this.keyRange.upperBound(t.upper,t.excludeUpper);break;default:throw new Error('Cannot create KeyRange. Provide one or both of "lower" or "upper" value, or an "only" value.')}return e}},a={};return o.prototype=s,o.version=s.version,o},this)},{}],31:[function(t,e,r){r.read=function(t,e,r,n,i){var o,s,a=8*i-n-1,u=(1<<a)-1,c=u>>1,l=-7,f=r?i-1:0,h=r?-1:1,p=t[e+f];for(f+=h,o=p&(1<<-l)-1,p>>=-l,l+=a;l>0;o=256*o+t[e+f],f+=h,l-=8);for(s=o&(1<<-l)-1,o>>=-l,l+=n;l>0;s=256*s+t[e+f],f+=h,l-=8);if(0===o)o=1-c;else{if(o===u)return s?NaN:(p?-1:1)*(1/0);s+=Math.pow(2,n),o-=c}return(p?-1:1)*s*Math.pow(2,o-n)},r.write=function(t,e,r,n,i,o){var s,a,u,c=8*o-i-1,l=(1<<c)-1,f=l>>1,h=23===i?Math.pow(2,-24)-Math.pow(2,-77):0,p=n?0:o-1,d=n?1:-1,v=0>e||0===e&&0>1/e?1:0;for(e=Math.abs(e),isNaN(e)||e===1/0?(a=isNaN(e)?1:0,s=l):(s=Math.floor(Math.log(e)/Math.LN2),e*(u=Math.pow(2,-s))<1&&(s--,u*=2),e+=s+f>=1?h/u:h*Math.pow(2,1-f),e*u>=2&&(s++,u/=2),s+f>=l?(a=0,s=l):s+f>=1?(a=(e*u-1)*Math.pow(2,i),s+=f):(a=e*Math.pow(2,f-1)*Math.pow(2,i),s=0));i>=8;t[r+p]=255&a,p+=d,a/=256,i-=8);for(s=s<<i|a,c+=i;c>0;t[r+p]=255&s,p+=d,s/=256,c-=8);t[r+p-d]|=128*v}},{}],32:[function(t,e,r){arguments[4][6][0].apply(r,arguments)},{dup:6}],33:[function(t,e,r){function n(t){var e=i.call(t);return"[object Function]"===e||"function"==typeof t&&"[object RegExp]"!==e||"undefined"!=typeof window&&(t===window.setTimeout||t===window.alert||t===window.confirm||t===window.prompt)}e.exports=n;var i=Object.prototype.toString},{}],34:[function(t,e,r){function n(t){return i.isBuffer(t)||/\[object (.+Array|Array.+)\]/.test(Object.prototype.toString.call(t))}var i=t("buffer").Buffer;e.exports=n},{buffer:1}],35:[function(t,e,r){!function(){function t(t,r){this.title=t.title,this.stateName=t.stateName?t.stateName:"unnamed-state",this.icon=L.DomUtil.create("span",""),L.DomUtil.addClass(this.icon,"button-state state-"+this.stateName.replace(/(^\s*|\s*$)/g,"")),this.icon.innerHTML=e(t.icon),this.onClick=L.Util.bind(t.onClick?t.onClick:function(){},r)}function e(t){var e;return t.match(/[&;=<>"']/)?e=t:(t=t.replace(/(^\s*|\s*$)/g,""),e=L.DomUtil.create("span",""),0===t.indexOf("fa-")?L.DomUtil.addClass(e,"fa "+t):0===t.indexOf("glyphicon-")?L.DomUtil.addClass(e,"glyphicon "+t):L.DomUtil.addClass(e,t),e=e.outerHTML),e}L.Control.EasyBar=L.Control.extend({options:{position:"topleft",id:null,leafletClasses:!0},initialize:function(t,e){e&&L.Util.setOptions(this,e),this._buildContainer(),this._buttons=[];for(var r=0;r<t.length;r++)t[r]._bar=this,t[r]._container=t[r].button,this._buttons.push(t[r]),this.container.appendChild(t[r].button)},_buildContainer:function(){this._container=this.container=L.DomUtil.create("div",""),this.options.leafletClasses&&L.DomUtil.addClass(this.container,"leaflet-bar easy-button-container leaflet-control"),this.options.id&&(this.container.id=this.options.id)},enable:function(){return L.DomUtil.addClass(this.container,"enabled"),L.DomUtil.removeClass(this.container,"disabled"),this.container.setAttribute("aria-hidden","false"),this},disable:function(){return L.DomUtil.addClass(this.container,"disabled"),L.DomUtil.removeClass(this.container,"enabled"),this.container.setAttribute("aria-hidden","true"),this},onAdd:function(){return this.container},addTo:function(t){this._map=t;for(var e=0;e<this._buttons.length;e++)this._buttons[e]._map=t;var r=this._container=this.onAdd(t),n=this.getPosition(),i=t._controlCorners[n];return L.DomUtil.addClass(r,"leaflet-control"),-1!==n.indexOf("bottom")?i.insertBefore(r,i.firstChild):i.appendChild(r),this}}),L.easyBar=function(){for(var t=[L.Control.EasyBar],e=0;e<arguments.length;e++)t.push(arguments[e]);return new(Function.prototype.bind.apply(L.Control.EasyBar,t))},L.Control.EasyButton=L.Control.extend({options:{position:"topleft",id:null,type:"replace",states:[],leafletClasses:!0,tagName:"button"},initialize:function(e,r,n,i){this.options.states=[],null!=i&&(this.options.id=i),this.storage={},"object"==typeof arguments[arguments.length-1]&&L.Util.setOptions(this,arguments[arguments.length-1]),0===this.options.states.length&&"string"==typeof e&&"function"==typeof r&&this.options.states.push({icon:e,onClick:r,title:"string"==typeof n?n:""}),this._states=[];for(var o=0;o<this.options.states.length;o++)this._states.push(new t(this.options.states[o],this));this._buildButton(),this._activateState(this._states[0])},_buildButton:function(){if(this.button=L.DomUtil.create(this.options.tagName,""),"button"===this.tagName&&(this.button.type="button"),this.options.id&&(this.button.id=this.options.id),this.options.leafletClasses&&L.DomUtil.addClass(this.button,"easy-button-button leaflet-bar-part leaflet-interactive"),L.DomEvent.addListener(this.button,"dblclick",L.DomEvent.stop),L.DomEvent.addListener(this.button,"mousedown",L.DomEvent.stop),L.DomEvent.addListener(this.button,"click",function(t){L.DomEvent.stop(t),this._currentState.onClick(this,this._map?this._map:null),this._map.getContainer().focus()},this),"replace"==this.options.type)this.button.appendChild(this._currentState.icon);else for(var t=0;t<this._states.length;t++)this.button.appendChild(this._states[t].icon)},_currentState:{stateName:"unnamed",icon:function(){return document.createElement("span")}()},_states:null,state:function(t){return"string"==typeof t?this._activateStateNamed(t):"number"==typeof t&&this._activateState(this._states[t]),this},_activateStateNamed:function(t){for(var e=0;e<this._states.length;e++)this._states[e].stateName==t&&this._activateState(this._states[e])},_activateState:function(t){if(t!==this._currentState){"replace"==this.options.type&&(this.button.appendChild(t.icon),this.button.removeChild(this._currentState.icon)),t.title?this.button.title=t.title:this.button.removeAttribute("title");for(var e=0;e<this._states.length;e++)L.DomUtil.removeClass(this._states[e].icon,this._currentState.stateName+"-active"),L.DomUtil.addClass(this._states[e].icon,t.stateName+"-active");L.DomUtil.removeClass(this.button,this._currentState.stateName+"-active"),L.DomUtil.addClass(this.button,t.stateName+"-active"),this._currentState=t}},enable:function(){return L.DomUtil.addClass(this.button,"enabled"),L.DomUtil.removeClass(this.button,"disabled"),this.button.setAttribute("aria-hidden","false"),this},disable:function(){return L.DomUtil.addClass(this.button,"disabled"),L.DomUtil.removeClass(this.button,"enabled"),this.button.setAttribute("aria-hidden","true"),this},removeFrom:function(t){return this._container.parentNode.removeChild(this._container),this._map=null,this},onAdd:function(){var t=L.easyBar([this],{position:this.options.position,leafletClasses:this.options.leafletClasses});return this._container=t.container,this._container}}),L.easyButton=function(){var t=Array.prototype.concat.apply([L.Control.EasyButton],arguments);return new(Function.prototype.bind.apply(L.Control.EasyButton,t))}}()},{}],36:[function(t,e,r){(function(r){function n(t){if(!(this instanceof n))return new n(t);if(!t)throw new Error("constructor requires at least a location argument");this.IDBOptions={},this.location=t}e.exports=n;var i=t("idb-wrapper"),o=t("abstract-leveldown").AbstractLevelDOWN,s=t("util"),a=t("./iterator"),u=t("isbuffer"),c=t("xtend"),l=t("typedarray-to-buffer");s.inherits(n,o),n.prototype._open=function(t,e){var r=this,n={storeName:this.location,autoIncrement:!1,keyPath:null,onStoreReady:function(){e&&e(null,r.idb)},onError:function(t){e&&e(t)}};c(n,t),this.IDBOptions=n,this.idb=new i(n)},n.prototype._get=function(t,e,n){this.idb.get(t,function(i){if(void 0===i)return n(new Error("NotFound"));var o=!0;return e.asBuffer===!1&&(o=!1),e.raw&&(o=!1),o&&(i=i instanceof Uint8Array?l(i):new r(String(i))),n(null,i,t)},n)},n.prototype._del=function(t,e,r){this.idb.remove(t,r,r)},n.prototype._put=function(t,e,n,i){e instanceof ArrayBuffer&&(e=l(new Uint8Array(e)));var o=this.convertEncoding(t,e,n);r.isBuffer(o.value)&&("function"==typeof e.toArrayBuffer?o.value=new Uint8Array(e.toArrayBuffer()):o.value=new Uint8Array(e)),this.idb.put(o.key,o.value,function(){i()},i)},n.prototype.convertEncoding=function(t,e,r){if(r.raw)return{key:t,value:e};if(e){var n=e.toString();"NaN"===n&&(e="NaN")}var i=r.valueEncoding,o={key:t,value:e};return!e||i&&"binary"===i||"object"!=typeof o.value&&(o.value=n),o},n.prototype.iterator=function(t){return"object"!=typeof t&&(t={}),new a(this.idb,t)},n.prototype._batch=function(t,e,r){var n,i,o,s,a=[];if(0===t.length)return setTimeout(r,0);for(n=0;n<t.length;n++){o={},s=t[n],a[n]=o;var u=this.convertEncoding(s.key,s.value,e);s.key=u.key,s.value=u.value;for(i in s)"type"===i&&"del"==s[i]?o[i]="remove":o[i]=s[i]}return this.idb.batch(a,function(){r()},r)},n.prototype._close=function(t){this.idb.db.close(),t()},n.prototype._approximateSize=function(t,e,r){var n=new Error("Not implemented");if(r)return r(n);throw n},n.prototype._isBuffer=function(t){return r.isBuffer(t)},n.destroy=function(t,e){if("object"==typeof t)var r=t.IDBOptions.storePrefix||"IDBWrapper-",n=t.location;else var r="IDBWrapper-",n=t;var i=indexedDB.deleteDatabase(r+n);i.onsuccess=function(){e()},i.onerror=function(t){e(t)}};n.prototype._checkKeyValue=function(t,e){return null===t||void 0===t?new Error(e+" cannot be `null` or `undefined`"):null===t||void 0===t?new Error(e+" cannot be `null` or `undefined`"):u(t)&&0===t.byteLength?new Error(e+" cannot be an empty ArrayBuffer"):""===String(t)?new Error(e+" cannot be an empty String"):0===t.length?new Error(e+" cannot be an empty Array"):void 0}}).call(this,t("buffer").Buffer)},{"./iterator":37,"abstract-leveldown":40,buffer:1,"idb-wrapper":30,isbuffer:34,"typedarray-to-buffer":60,util:9,xtend:43}],37:[function(t,e,r){function n(t,e){e||(e={}),this.options=e,o.call(this,t),this._order=e.reverse?"DESC":"ASC",this._limit=e.limit,this._count=0,this._done=!1;var r=s.lowerBound(e),n=s.upperBound(e);try{this._keyRange=r||n?this.db.makeKeyRange({lower:r,upper:n,excludeLower:s.lowerBoundExclusive(e),excludeUpper:s.upperBoundExclusive(e)}):null}catch(i){this._keyRangeError=!0}this.callback=null}var i=t("util"),o=t("abstract-leveldown").AbstractIterator,s=t("ltgt");e.exports=n,i.inherits(n,o),n.prototype.createIterator=function(){var t=this;t.iterator=t.db.iterate(function(){t.onItem.apply(t,arguments)},{keyRange:t._keyRange,autoContinue:!1,order:t._order,onError:function(t){console.log("horrible error",t)}})},n.prototype.onItem=function(t,e,r){if(!e&&this.callback)return this.callback(),void(this.callback=!1);var n=!0;this._limit&&this._limit>0&&this._count++>=this._limit&&(n=!1),n&&this.callback(!1,e.key,e.value),e&&e["continue"]()},n.prototype._next=function(t){return t?this._keyRangeError?t():(this._started||(this.createIterator(),this._started=!0),void(this.callback=t)):new Error("next() requires a callback 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