{"id":219037,"date":"2014-04-11T15:09:02","date_gmt":"2014-04-11T11:09:02","guid":{"rendered":"http:\/\/savepearlharbor.com\/?p=219037"},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-29T21:00:00","slug":"","status":"publish","type":"post","link":"https:\/\/savepearlharbor.com\/?p=219037","title":{"rendered":"<span class=\"post_title\">\u0421\u043a\u0440\u0435\u0449\u0438\u0432\u0430\u0435\u043c WebWorker \u0438 Promise<\/span>"},"content":{"rendered":"<div class=\"content html_format\">   \t\u0415\u0441\u043b\u0438 \u0443\u0436 \u0435\u0441\u0442\u044c \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e\u0441\u0442\u044c \u0441\u043a\u0440\u0435\u0449\u0438\u0432\u0430\u0442\u044c WebWorker \u0441 <a href=\"http:\/\/habrahabr.ru\/post\/218989\/\">XMLHttpRequest<\/a>, \u0442\u043e \u043f\u043e\u0440\u0430 \u0431\u044b \u0441\u043a\u0440\u0435\u0441\u0442\u0438\u0442\u044c \u0435\u0433\u043e \u0441 \u043b\u044e\u0431\u043e\u0439 \u0444\u0443\u043d\u043a\u0446\u0438\u0435\u0439, \u0430 \u0437\u0430\u043e\u0434\u043d\u043e \u0440\u0430\u0437\u043e\u0431\u0440\u0430\u0442\u044c\u0441\u044f \u0441 <a href=\"http:\/\/www.html5rocks.com\/en\/tutorials\/es6\/promises\/\">\u043e\u0431\u0435\u0449\u0430\u043d\u0438\u044f\u043c\u0438 ES6<\/a>.<\/p>\n<p>  \u0426\u0435\u043b\u044c \u2014 \u043d\u0430\u0443\u0447\u0438\u0442\u044c\u0441\u044f \u0434\u0435\u043b\u0430\u0442\u044c \u0432\u043e\u0442 \u0442\u0430\u043a: <br \/>  <code>new PromiseWorker(array =&gt; array.sort()).Invoke([3,2,1]).then(result =&gt; console.log(result));<\/code><br \/>  (\u0417\u0434\u0435\u0441\u044c \u0438 \u0434\u0430\u043b\u0435\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0442\u0441\u044f <a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/JavaScript\/Reference\/arrow_functions\">arrow functions<\/a> \u0434\u043b\u044f \u043a\u0440\u0430\u0442\u043a\u043e\u0441\u0442\u0438)<\/p>\n<p>  <a name=\"habracut\"><\/a><\/p>\n<p>  \u041a\u0430\u043a \u0438\u0437\u0432\u0435\u0441\u0442\u043d\u043e, true-way \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u0432\u043e\u0440\u043a\u0435\u0440\u0430 \u2014 \u043f\u0435\u0440\u0435\u0434\u0430\u0442\u044c \u043f\u0443\u0442\u044c \u043a \u0444\u0430\u0439\u043b\u0443 \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u0435\u0434\u0438\u043d\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0433\u043e \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u0430: <code> new Worker(&quot;\/JS\/worker.js&quot;) <\/code>. \u043f\u043e\u0432\u0435\u0441\u0438\u0442\u044c \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a onmessage, \u0432\u044b\u0437\u044b\u0432\u0430\u0442\u044c postmessage \u0438 \u043f\u0440\u0438\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0442\u044c\u0441\u044f \u043f\u043e\u0434\u043e\u0431\u043d\u043e\u0433\u043e \u0441\u0442\u0438\u043b\u044f \u0432 \u0444\u0430\u0439\u043b\u0435 \u0432\u043e\u0440\u043a\u0435\u0440\u0430. \u041f\u043e \u043c\u043e\u0435\u043c\u0443 \u043c\u043d\u0435\u043d\u0438\u044e \u043d\u0430 \u043e\u0434\u043d\u0443 \u0444\u0443\u043d\u043a\u0446\u0438\u044e \u0441\u043b\u0438\u0448\u043a\u043e\u043c \u0436\u0438\u0440\u043d\u043e \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u0442\u044c \u0446\u0435\u043b\u044b\u0439 \u0444\u0430\u0439\u043b, \u0434\u0430 \u0438 \u0432\u043e\u0437\u0438\u0442\u044c\u0441\u044f \u0441 \u0441\u043e\u0431\u044b\u0442\u0438\u044f\u043c\u0438-\u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430\u043c\u0438 \u0443\u0436\u0435 \u043d\u0435 \u043a\u043e\u043c\u0438\u043b\u044c\u0444\u043e. \u0425\u043e\u0440\u043e\u0448\u043e, \u0447\u0442\u043e \u0435\u0441\u0442\u044c <a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/API\/Blob\">Blob<\/a> \u0438 \u0443\u0436\u0435 \u0443\u043f\u043e\u043c\u044f\u043d\u0443\u0442\u044b\u0435 Promises.<\/p>\n<p>  \u0421\u043d\u0430\u0447\u0430\u043b\u0430 \u043d\u0430\u0434\u043e \u0441\u0434\u0435\u043b\u0430\u0442\u044c \u043f\u0440\u0435\u043e\u0431\u0440\u0430\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0432\u0445\u043e\u0434\u043d\u043e\u0439 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \u0432 \u043f\u0440\u0438\u0435\u043c\u043b\u0435\u043c\u044b\u0439 \u0434\u043b\u044f \u0432\u043e\u0440\u043a\u0435\u0440\u0430 \u0432\u0438\u0434:  <\/p>\n<pre><code class=\"javascript\">var FnToWorker = fn =&gt; {    var workerBody = &quot;self.addEventListener('message',&quot; +         &quot;function (d) {&quot; +             &quot;var result;&quot; +             &quot;try {&quot; +                 &quot;result = (&quot; + fn.toString() + &quot;)(d.data.Data);&quot; +                 &quot;self.postMessage({ Result: result, Id: d.data.Id });&quot; +             &quot;} catch (e) {&quot; +                 &quot;self.postMessage({ Error: e, Id: d.data.Id });&quot; +             &quot;}&quot; +         &quot;});&quot;     var worker = new Worker(URL.createObjectURL(new Blob([workerBody])));     return worker; } <\/code><\/pre>\n<p>  \u0414\u0430, \u0442\u0443\u0442 \u043e\u0442\u0432\u0440\u0430\u0442\u0438\u0442\u0435\u043b\u044c\u043d\u0430\u044f \u043a\u043e\u043d\u043a\u0430\u0442\u0435\u043d\u0430\u0446\u0438\u044f \u0441\u0442\u0440\u043e\u043a, fn.toString() \u0438 \u043f\u0440\u043e\u0447\u0438\u0435 \u0443\u0436\u0430\u0441\u043d\u044b\u0435 \u0432\u0435\u0449\u0438\u2026 \u0433\u043b\u0430\u0432\u043d\u043e\u0435 \u0447\u0442\u043e \u044d\u0442\u043e\u0442 \u043a\u043e\u0434 \u043c\u043e\u0436\u043d\u043e \u043e\u0434\u0438\u043d \u0440\u0430\u0437 \u043d\u0430\u043f\u0438\u0441\u0430\u0442\u044c \u0438 \u0437\u0430\u0431\u044b\u0442\u044c \u043e \u043d\u0435\u043c.<\/p>\n<p>  \u0412\u043e\u0442 \u0442\u0430\u043a \u0431\u0443\u0434\u0435\u0442 \u0432\u044b\u0433\u043b\u044f\u0434\u0435\u0442\u044c Invoke:  <\/p>\n<pre><code class=\"javascript\">var promises = []; \/\/\u041e\u0447\u0435\u0440\u0435\u0434\u044c \u0432\u044b\u0437\u043e\u0432\u043e\u0432 var Invoke = data =&gt; {     var message = { Data: data, Id: performance.now() }; \/\/\u0423 \u043a\u0430\u0436\u0434\u043e\u0433\u043e \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u044f Id, \u0447\u0442\u043e\u0431\u044b \u043d\u0438\u0447\u0435\u0433\u043e \u043d\u0435 \u043f\u0443\u0442\u0430\u043b\u043e\u0441\u044c     var p = new Promise((resolve, reject) =&gt; {         promises[message.Id] = { resolve: resolve, reject: reject };     });     worker.postMessage(message); \/\/\u0417\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u043c \u0432\u043e\u0440\u043a\u0435\u0440     return p; } <\/code><\/pre>\n<p>  \u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c Promise \u043d\u0435 \u0441\u043b\u043e\u0436\u043d\u043e: \u0432 \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0442\u043e\u0440 \u043f\u0435\u0440\u0435\u0434\u0430\u0435\u043c \u0444\u0443\u043d\u043a\u0446\u0438\u044e \u043e\u0442 \u0434\u0432\u0443\u0445 \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u043e\u0432: resolve \u0438 reject. \u042d\u0442\u043e \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043d\u0430\u0434\u043e \u0431\u0443\u0434\u0435\u0442 \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u0432 \u0441\u043b\u0443\u0447\u0430\u0435 \u0443\u0441\u043f\u0435\u0445\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 \u0438 \u043d\u0435\u0443\u0441\u043f\u0435\u0445\u0430 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0435\u043d\u043d\u043e. \u0412 \u043d\u0430\u0448\u0435\u043c \u0441\u043b\u0443\u0447\u0430\u0435 \u043e\u043d\u0438 \u0431\u0443\u0434\u0443\u0442 \u0432\u044b\u0437\u044b\u0432\u0430\u0442\u044c\u0441\u044f \u043f\u043e\u0441\u043b\u0435 \u0442\u043e\u0433\u043e, \u043a\u0430\u043a \u043e\u0442\u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u0432\u043e\u0440\u043a\u0435\u0440:  <\/p>\n<pre><code class=\"javascript\">var OnMessage = data =&gt; {     if (data.data.Error) {         promises[data.data.Id].reject(data.data.Result);     } else {         promises[data.data.Id].resolve(data.data.Result);     }     promises[data.data.Id] = undefined; } <\/code><\/pre>\n<p>  \u041d\u0443 \u0438 \u0432\u043e\u0442 \u0442\u0430\u043a \u043e\u043d\u043e \u0431\u0443\u0434\u0435\u0442 \u0432\u044b\u0433\u043b\u044f\u0434\u0435\u0442\u044c \u0432 \u0441\u0431\u043e\u0440\u0435: <a href=\"http:\/\/jsfiddle.net\/sXJ4M\/1\/\">http:\/\/jsfiddle.net\/sXJ4M\/1\/<\/a><\/p>\n<p>  \u041a\u043e\u043d\u0435\u0447\u043d\u043e, \u0441\u043b\u043e\u0436\u043d\u043e \u0441\u0435\u0431\u0435 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u0442\u044c, \u0433\u0434\u0435 \u043c\u043e\u0436\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0432\u043e\u0440\u043a\u0435\u0440\u044b \u0432 \u0438\u043d\u0442\u0435\u0440\u043d\u0435\u0442-\u043c\u0430\u0433\u0430\u0437\u0438\u043d\u0435, \u043d\u043e \u0432 \u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e \u0431\u043e\u043b\u044c\u0448\u0438\u0445 \u0438 \u0441\u043b\u043e\u0436\u043d\u044b\u0445 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f\u0445 \u043e\u043d\u0438 \u043e\u0447\u0435\u043d\u044c \u043f\u043e\u043c\u043e\u0433\u0430\u044e\u0442.      \t<\/p>\n<div class=\"clear\"><\/div>\n<\/p><\/div>\n<p> \u0441\u0441\u044b\u043b\u043a\u0430 \u043d\u0430 \u043e\u0440\u0438\u0433\u0438\u043d\u0430\u043b \u0441\u0442\u0430\u0442\u044c\u0438 <a href=\"http:\/\/habrahabr.ru\/post\/219037\/\"> http:\/\/habrahabr.ru\/post\/219037\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"content html_format\">   \t\u0415\u0441\u043b\u0438 \u0443\u0436 \u0435\u0441\u0442\u044c \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e\u0441\u0442\u044c \u0441\u043a\u0440\u0435\u0449\u0438\u0432\u0430\u0442\u044c WebWorker \u0441 <a href=\"http:\/\/habrahabr.ru\/post\/218989\/\">XMLHttpRequest<\/a>, \u0442\u043e \u043f\u043e\u0440\u0430 \u0431\u044b \u0441\u043a\u0440\u0435\u0441\u0442\u0438\u0442\u044c \u0435\u0433\u043e \u0441 \u043b\u044e\u0431\u043e\u0439 \u0444\u0443\u043d\u043a\u0446\u0438\u0435\u0439, \u0430 \u0437\u0430\u043e\u0434\u043d\u043e \u0440\u0430\u0437\u043e\u0431\u0440\u0430\u0442\u044c\u0441\u044f \u0441 <a href=\"http:\/\/www.html5rocks.com\/en\/tutorials\/es6\/promises\/\">\u043e\u0431\u0435\u0449\u0430\u043d\u0438\u044f\u043c\u0438 ES6<\/a>.<\/p>\n<p>  \u0426\u0435\u043b\u044c \u2014 \u043d\u0430\u0443\u0447\u0438\u0442\u044c\u0441\u044f \u0434\u0435\u043b\u0430\u0442\u044c \u0432\u043e\u0442 \u0442\u0430\u043a: <br \/>  <code>new PromiseWorker(array =&gt; array.sort()).Invoke([3,2,1]).then(result =&gt; console.log(result));<\/code><br \/>  (\u0417\u0434\u0435\u0441\u044c \u0438 \u0434\u0430\u043b\u0435\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0442\u0441\u044f <a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/JavaScript\/Reference\/arrow_functions\">arrow functions<\/a> \u0434\u043b\u044f \u043a\u0440\u0430\u0442\u043a\u043e\u0441\u0442\u0438)<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-219037","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts\/219037","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=219037"}],"version-history":[{"count":0,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts\/219037\/revisions"}],"wp:attachment":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=219037"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=219037"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=219037"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}