回答編集履歴
2
ｔｙぽ
answer
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@@ -46,7 +46,6 @@
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$.ajax({url:"get.php?sleep=3"}).done(function(data){$("#d1").text(data);d.resolve();}),
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$.ajax({url:"get.php?sleep=1"}).done(function(data){$("#d2").text(data);d.resolve();}),
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$.ajax({url:"get.php?sleep=5"}).done(function(data){$("#d3").text(data);d.resolve();})
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-
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).done(function(){
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$("#end").text("end");
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});
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@@ -60,14 +59,16 @@
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var d1 = $.Deferred();
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var d2 = $.Deferred();
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var d3 = $.Deferred();
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$("#d1").load("get.php?sleep=3",function(){d1.resolve()});
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$("#d2").load("get.php?sleep=1",function(){d2.resolve()});
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$("#d3").load("get.php?sleep=5",function(){d3.resolve()});
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$.when(
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$("#d1").load("get.php?sleep=3",function(){d1.resolve()}),d1.promise(),
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d1,d2,d3
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$("#d3").load("get.php?sleep=5",function(){d3.resolve()}),d3.promise()
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).done(function(){
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$("#end").text("end");
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});
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});
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```
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## パターン3(deferredをwhen + promise)
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@@ -78,11 +79,10 @@
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var d1 = $.Deferred();
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var d2 = $.Deferred();
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var d3 = $.Deferred();
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-
$("#d1").load("get.php?sleep=3",function(){d1.resolve()});
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$("#d2").load("get.php?sleep=1",function(){d2.resolve()});
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$("#d3").load("get.php?sleep=5",function(){d3.resolve()});
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$.when(
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$("#d1").load("get.php?sleep=3",function(){d1.resolve()}),d1.promise(),
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-
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$("#d2").load("get.php?sleep=1",function(){d2.resolve()}),d2.promise(),
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$("#d3").load("get.php?sleep=5",function(){d3.resolve()}),d3.promise()
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).done(function(){
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$("#end").text("end");
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});
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1
参考
answer
CHANGED
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@@ -13,4 +13,98 @@
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});
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});
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```
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# 参考までに
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以下、sampleで試してみて下さい
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- self.htm
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```HTML
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<div id="start"></div>
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<div id="d1"></div>
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<div id="d2"></div>
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<div id="d3"></div>
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<div id="end"></div>
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```
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- get.php
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パラメータsleepで指定した秒数後に、その値を表示する
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```PHP
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<?PHP
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$sleep=filter_input(INPUT_GET,"sleep");
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sleep($sleep);
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print $sleep;
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?>
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```
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## パターン1($.ajax)
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```javascript
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$(function(){
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$("#start").text("start");
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var d = $.Deferred();
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$.when(
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$.ajax({url:"get.php?sleep=3"}).done(function(data){$("#d1").text(data);d.resolve();}),
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$.ajax({url:"get.php?sleep=1"}).done(function(data){$("#d2").text(data);d.resolve();}),
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$.ajax({url:"get.php?sleep=5"}).done(function(data){$("#d3").text(data);d.resolve();})
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).done(function(){
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$("#end").text("end");
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});
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});
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```
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## パターン2(deferredをwhen)
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```javascript
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$(function(){
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$("#start").text("start");
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var d1 = $.Deferred();
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var d2 = $.Deferred();
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var d3 = $.Deferred();
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$.when(
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$("#d1").load("get.php?sleep=3",function(){d1.resolve()}),d1.promise(),
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$("#d2").load("get.php?sleep=1",function(){d2.resolve()}),d2.promise(),
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$("#d3").load("get.php?sleep=5",function(){d3.resolve()}),d3.promise()
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).done(function(){
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$("#end").text("end");
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});
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});
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```
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## パターン3(deferredをwhen + promise)
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74
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```javascript
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$(function(){
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$("#start").text("start");
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var d1 = $.Deferred();
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var d2 = $.Deferred();
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var d3 = $.Deferred();
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$("#d1").load("get.php?sleep=3",function(){d1.resolve()});
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$("#d2").load("get.php?sleep=1",function(){d2.resolve()});
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$("#d3").load("get.php?sleep=5",function(){d3.resolve()});
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$.when(
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d1,d2,d3
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).done(function(){
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$("#end").text("end");
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});
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});
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```
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## パターン4(promiseを利用)
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93
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+
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94
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※jQueryの他に、非対応ブラウザ（とくにIE）向けにライブラリを追加
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95
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```javascript
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<script src="https://www.promisejs.org/polyfills/promise-6.1.0.min.js"></script>
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```
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98
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その上で
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```javascript
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$(function(){
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$("#start").text("start");
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Promise.all([
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new Promise(function(resolve){$("#d1").load("get.php?sleep=3",function(){resolve(this);})}),
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new Promise(function(resolve){$("#d2").load("get.php?sleep=1",function(){resolve(this);})}),
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new Promise(function(resolve){$("#d3").load("get.php?sleep=5",function(){resolve(this);})}),
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]).then(function(){
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$("#end").text("end");
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});
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});
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16
110
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```
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