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Lightweight promise polyfill. A+ compliant
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!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?t():"function"==typeof define&&define.amd?define(t):t()}(0,function(){"use strict";function e(e){var t=this.constructor;return this.then(function(n){return t.resolve(e()).then(function(){return n})},function(n){return t.resolve(e()).then(function(){return t.reject(n)})})}function t(e){return new this(function(t,n){function r(e,n){if(n&&("object"==typeof n||"function"==typeof n)){var f=n.then;if("function"==typeof f)return void f.call(n,function(t){r(e,t)},function(n){o[e]={status:"rejected",reason:n},0==--i&&t(o)})}o[e]={status:"fulfilled",value:n},0==--i&&t(o)}if(!e||"undefined"==typeof e.length)return n(new TypeError(typeof e+" "+e+" is not iterable(cannot read property Symbol(Symbol.iterator))"));var o=Array.prototype.slice.call(e);if(0===o.length)return t([]);for(var i=o.length,f=0;o.length>f;f++)r(f,o[f])})}function n(e,t){this.name="AggregateError",this.errors=e,this.message=t||""}function r(e){var t=this;return new t(function(r,o){if(!e||"undefined"==typeof e.length)return o(new TypeError("Promise.any accepts an array"));var i=Array.prototype.slice.call(e);if(0===i.length)return o();for(var f=[],u=0;i.length>u;u++)try{t.resolve(i[u]).then(r)["catch"](function(e){f.push(e),f.length===i.length&&o(new n(f,"All promises were rejected"))})}catch(c){o(c)}})}function o(e){return!(!e||"undefined"==typeof e.length)}function i(){}function f(e){if(!(this instanceof f))throw new TypeError("Promises must be constructed via new");if("function"!=typeof e)throw new TypeError("not a function");this._state=0,this._handled=!1,this._value=undefined,this._deferreds=[],s(e,this)}function u(e,t){for(;3===e._state;)e=e._value;0!==e._state?(e._handled=!0,f._immediateFn(function(){var n=1===e._state?t.onFulfilled:t.onRejected;if(null!==n){var r;try{r=n(e._value)}catch(o){return void a(t.promise,o)}c(t.promise,r)}else(1===e._state?c:a)(t.promise,e._value)})):e._deferreds.push(t)}function c(e,t){try{if(t===e)throw new TypeError("A promise cannot be resolved with itself.");if(t&&("object"==typeof t||"function"==typeof t)){var n=t.then;if(t instanceof f)return e._state=3,e._value=t,void l(e);if("function"==typeof n)return void s(function(e,t){return function(){e.apply(t,arguments)}}(n,t),e)}e._state=1,e._value=t,l(e)}catch(r){a(e,r)}}function a(e,t){e._state=2,e._value=t,l(e)}function l(e){2===e._state&&0===e._deferreds.length&&f._immediateFn(function(){e._handled||f._unhandledRejectionFn(e._value)});for(var t=0,n=e._deferreds.length;n>t;t++)u(e,e._deferreds[t]);e._deferreds=null}function s(e,t){var n=!1;try{e(function(e){n||(n=!0,c(t,e))},function(e){n||(n=!0,a(t,e))})}catch(r){if(n)return;n=!0,a(t,r)}}n.prototype=Error.prototype;var d=setTimeout;f.prototype["catch"]=function(e){return this.then(null,e)},f.prototype.then=function(e,t){var n=new this.constructor(i);return u(this,new function(e,t,n){this.onFulfilled="function"==typeof e?e:null,this.onRejected="function"==typeof t?t:null,this.promise=n}(e,t,n)),n},f.prototype["finally"]=e,f.all=function(e){return new f(function(t,n){function r(e,o){try{if(o&&("object"==typeof o||"function"==typeof o)){var u=o.then;if("function"==typeof u)return void u.call(o,function(t){r(e,t)},n)}i[e]=o,0==--f&&t(i)}catch(c){n(c)}}if(!o(e))return n(new TypeError("Promise.all accepts an array"));var i=Array.prototype.slice.call(e);if(0===i.length)return t([]);for(var f=i.length,u=0;i.length>u;u++)r(u,i[u])})},f.any=r,f.allSettled=t,f.resolve=function(e){return e&&"object"==typeof e&&e.constructor===f?e:new f(function(t){t(e)})},f.reject=function(e){return new f(function(t,n){n(e)})},f.race=function(e){return new f(function(t,n){if(!o(e))return n(new TypeError("Promise.race accepts an array"));for(var r=0,i=e.length;i>r;r++)f.resolve(e[r]).then(t,n)})},f._immediateFn="function"==typeof setImmediate&&function(e){setImmediate(e)}||function(e){d(e,0)},f._unhandledRejectionFn=function(e){void 0!==console&&console&&console.warn("Possible Unhandled Promise Rejection:",e)};var p=function(){if("undefined"!=typeof self)return self;if("undefined"!=typeof window)return window;if("undefined"!=typeof global)return global;throw Error("unable to locate global object")}();"function"!=typeof p.Promise?p.Promise=f:(p.Promise.prototype["finally"]||(p.Promise.prototype["finally"]=e),p.Promise.allSettled||(p.Promise.allSettled=t),p.Promise.any||(p.Promise.any=r))});