Created
February 7, 2016 16:17
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Promises one by one VS bundle
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| angular.module('app', []) | |
| .controller('AppCtrl', ['ChuckQuotes', function (ChuckQuotes) { | |
| var vm = this; | |
| vm.jokesToFetch = ChuckQuotes.amount; | |
| vm.changeAmount = function (value) { | |
| ChuckQuotes.amount = vm.jokesToFetch; | |
| } | |
| }]) | |
| .controller('QueueCtrl', ['ChuckQuotes', '$q', function (ChuckQuotes, $q) { | |
| var vm = this; | |
| vm.jokes = []; | |
| var startTime; | |
| var endTime; | |
| function start() { | |
| startTime = Date.now(); | |
| return $q.resolve(); | |
| } | |
| function theEnd() { | |
| endTime = Date.now(); | |
| vm.delta = endTime - startTime; | |
| } | |
| vm.startFetchProcess = function () { | |
| startTime = Date.now(); | |
| var sequence = start(); | |
| for (var i = 0; i < ChuckQuotes.amount; i++) { | |
| sequence = sequence | |
| .then(ChuckQuotes.fetchRandom) | |
| .then(function (response) { | |
| vm.jokes.push(response.data.value); | |
| }) | |
| } | |
| sequence.then(theEnd); | |
| }; | |
| }]) | |
| .controller('BundleCtrl', ['ChuckQuotes', '$q', function (ChuckQuotes, $q) { | |
| var vm = this; | |
| vm.jokes = []; | |
| var startTime; | |
| var endTime; | |
| function start() { | |
| startTime = Date.now(); | |
| return $q.resolve(); | |
| } | |
| function theEnd() { | |
| endTime = Date.now(); | |
| vm.delta = endTime - startTime; | |
| } | |
| vm.startFetchProcess = function () { | |
| var promises = []; | |
| for (var i = 0; i < ChuckQuotes.amount; i++) { | |
| promises.push(ChuckQuotes.fetchRandom()); | |
| } | |
| start() | |
| .then(function () { | |
| return $q.all(promises) | |
| }) | |
| .then(function (response) { | |
| vm.jokes = response.map(function (x) { | |
| return x.data.value; | |
| }) | |
| }) | |
| .then(theEnd); | |
| }; | |
| }]) | |
| .factory('ChuckQuotes', ['$http', function ($http) { | |
| function fetchRandom() { | |
| return $http.get('http://api.icndb.com/jokes/random'); | |
| } | |
| return { | |
| amount: 10, | |
| fetchRandom: fetchRandom | |
| } | |
| }]) |
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>Title</title> | |
| <style> | |
| .holder { | |
| display: flex; | |
| } | |
| .column { | |
| width: 50%; | |
| } | |
| </style> | |
| </head> | |
| <body ng-app="app" ng-controller="AppCtrl as ctrl"> | |
| <h1>Промисы один за другим и пучком</h1> | |
| <label> | |
| Сколько шуток получить? | |
| <input type="number" ng-model="ctrl.jokesToFetch" ng-change="ctrl.changeAmount()"> | |
| </label> | |
| <div class="holder"> | |
| <div ng-controller="QueueCtrl as qCtrl" class="column"> | |
| <button ng-click="qCtrl.startFetchProcess()">Одну за другой</button> | |
| <p ng-repeat="joke in qCtrl.jokes"> | |
| {{joke.id}}. {{joke.joke}} | |
| </p> | |
| <h4 ng-if="qCtrl.delta">Затрачено времени: {{qCtrl.delta}} мс</h4> | |
| </div> | |
| <div ng-controller="BundleCtrl as bCtrl" class="column"> | |
| <button ng-click="bCtrl.startFetchProcess()">Все сразу</button> | |
| <p ng-repeat="joke in bCtrl.jokes"> | |
| {{joke.id}}. {{joke.joke}} | |
| </p> | |
| <h4 ng-if="bCtrl.delta">Затрачено времени: {{bCtrl.delta}} мс</h4> | |
| </div> | |
| </div> | |
| <script src="../bower_components/angular/angular.js"></script> | |
| <script src="app.js"></script> | |
| </body> | |
| </html> |
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